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Finding the Fourth Proportional to 482,694.75, 724,159.17 and 145,715.27

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Solution

The fourth proportional to 482,694.75, 724,159.17 and 145,715.27 is: 218,608.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,694.75 : 724,159.17 = 145,715.27 : x
  2. Step 2: Convert to fraction form
    482,694.75/724,159.17 = 145,715.27/x
  3. Step 3: Cross multiply
    482,694.75x = 724,159.17 × 145,715.27
  4. Step 4: Simplify right side
    482,694.75x = 105,521,045,358.73
  5. Step 5: Solve for x
    x = 105,521,045,358.73/482,694.75
  6. Step 6: Final answer
    x = 218,608.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.