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Finding the Fourth Proportional to 63,909.40, 95,864.10 and 54,067.90

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Solution

The fourth proportional to 63,909.40, 95,864.10 and 54,067.90 is: 81,101.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,909.40 : 95,864.10 = 54,067.90 : x
  2. Step 2: Convert to fraction form
    63,909.40/95,864.10 = 54,067.90/x
  3. Step 3: Cross multiply
    63,909.40x = 95,864.10 × 54,067.90
  4. Step 4: Simplify right side
    63,909.40x = 5,183,170,572.39
  5. Step 5: Solve for x
    x = 5,183,170,572.39/63,909.40
  6. Step 6: Final answer
    x = 81,101.85

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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.