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Finding the Fourth Proportional to 73,630.80, 110,446.20 and 38,565.90

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Solution

The fourth proportional to 73,630.80, 110,446.20 and 38,565.90 is: 57,848.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,630.80 : 110,446.20 = 38,565.90 : x
  2. Step 2: Convert to fraction form
    73,630.80/110,446.20 = 38,565.90/x
  3. Step 3: Cross multiply
    73,630.80x = 110,446.20 × 38,565.90
  4. Step 4: Simplify right side
    73,630.80x = 4,259,457,104.58
  5. Step 5: Solve for x
    x = 4,259,457,104.58/73,630.80
  6. Step 6: Final answer
    x = 57,848.85

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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.