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Answer: Total number of juice bottles is 152
The truck is carrying grapefruit juice, tomato juice, and pineapple juice bottles in a ratio of 1 : 4: 3
There are 76 tomato juice bottle
Let the number of grapefruit bottle = x
Let the number of pineapple juice bottle = y
1: 4 : 3 = x : 76: y
To find the number of juice bottles, we will need to establish a proportion
[tex]\begin{gathered} 1\text{ : 4 = x : 76} \\ \frac{1}{4}\text{ = }\frac{x}{76} \\ \text{Introduce cross multiply} \\ 1\cdot\text{ 76 = 4 }\cdot\text{ x} \\ 76\text{ = 4x} \\ \text{Divide both sides by 4} \\ \frac{76}{4}\text{ = }\frac{4x}{4} \\ x\text{ = }\frac{76}{4} \\ x\text{ = 19} \end{gathered}[/tex]To calculate for y, we will still need to establish a proportion
[tex]\begin{gathered} 4\text{ : 3 = 76 : y} \\ \frac{4}{3}\text{ = }\frac{76}{y} \\ \text{Introduce cross multiply} \\ 4\cdot\text{ y = 76 x 3} \\ 4y\text{ = 228} \\ \text{Divide both sides by 4} \\ \frac{4y}{4}\text{ = }\frac{228}{4} \\ y\text{ = }\frac{228}{4} \\ y\text{ = 57} \end{gathered}[/tex]Since, x is the number of grapefruit bottles, then the number of grapefruit bottles in the truck is 19 bottles
Since, y is the number of pineapple bottles, therefore, the number of pineapple bottle is 57 bottles
Total number of juice bottles in the lorry = 19 + 76 + 57
The total number = 152 juice bottles
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