Finding the Fourth Proportional to 123,304,984.26, 170,160,863.70 and 73,745,350.31
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Solution
The fourth proportional to 123,304,984.26, 170,160,863.70 and 73,745,350.31 is: 101,768,574.70
Step by Step Solution
- Step 1: Write the proportion equation
123,304,984.26 : 170,160,863.70 = 73,745,350.31 : x - Step 2: Convert to fraction form
123,304,984.26/170,160,863.70 = 73,745,350.31/x - Step 3: Cross multiply
123,304,984.26x = 170,160,863.70 × 73,745,350.31 - Step 4: Simplify right side
123,304,984.26x = 12,548,572,502,353,458 - Step 5: Solve for x
x = 12,548,572,502,353,458/123,304,984.26 - Step 6: Final answer
x = 101,768,574.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.