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Finding the Fourth Proportional to 103,472.75, 155,209.13 and 29,600.75

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Solution

The fourth proportional to 103,472.75, 155,209.13 and 29,600.75 is: 44,401.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,472.75 : 155,209.13 = 29,600.75 : x
  2. Step 2: Convert to fraction form
    103,472.75/155,209.13 = 29,600.75/x
  3. Step 3: Cross multiply
    103,472.75x = 155,209.13 × 29,600.75
  4. Step 4: Simplify right side
    103,472.75x = 4,594,306,654.85
  5. Step 5: Solve for x
    x = 4,594,306,654.85/103,472.75
  6. Step 6: Final answer
    x = 44,401.13

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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.