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Finding the Fourth Proportional to 72,092.28, 108,061.92 and 42,524.04

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Solution

The fourth proportional to 72,092.28, 108,061.92 and 42,524.04 is: 63,740.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,092.28 : 108,061.92 = 42,524.04 : x
  2. Step 2: Convert to fraction form
    72,092.28/108,061.92 = 42,524.04/x
  3. Step 3: Cross multiply
    72,092.28x = 108,061.92 × 42,524.04
  4. Step 4: Simplify right side
    72,092.28x = 4,595,229,408.56
  5. Step 5: Solve for x
    x = 4,595,229,408.56/72,092.28
  6. Step 6: Final answer
    x = 63,740.94

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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.