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Finding the Fourth Proportional to 318,337.71, 477,454.68 and 93,645.61

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Solution

The fourth proportional to 318,337.71, 477,454.68 and 93,645.61 is: 140,453.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,337.71 : 477,454.68 = 93,645.61 : x
  2. Step 2: Convert to fraction form
    318,337.71/477,454.68 = 93,645.61/x
  3. Step 3: Cross multiply
    318,337.71x = 477,454.68 × 93,645.61
  4. Step 4: Simplify right side
    318,337.71x = 44,711,534,641.78
  5. Step 5: Solve for x
    x = 44,711,534,641.78/318,337.71
  6. Step 6: Final answer
    x = 140,453.15

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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.