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Finding the Fourth Proportional to 318,432.78, 477,572.52 and 93,732.15

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Solution

The fourth proportional to 318,432.78, 477,572.52 and 93,732.15 is: 140,575.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,432.78 : 477,572.52 = 93,732.15 : x
  2. Step 2: Convert to fraction form
    318,432.78/477,572.52 = 93,732.15/x
  3. Step 3: Cross multiply
    318,432.78x = 477,572.52 × 93,732.15
  4. Step 4: Simplify right side
    318,432.78x = 44,763,899,080.52
  5. Step 5: Solve for x
    x = 44,763,899,080.52/318,432.78
  6. Step 6: Final answer
    x = 140,575.66

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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.