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Finding the Fourth Proportional to 63,573.68, 87,766.92 and 56,843.12

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Solution

The fourth proportional to 63,573.68, 87,766.92 and 56,843.12 is: 78,475.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,573.68 : 87,766.92 = 56,843.12 : x
  2. Step 2: Convert to fraction form
    63,573.68/87,766.92 = 56,843.12/x
  3. Step 3: Cross multiply
    63,573.68x = 87,766.92 × 56,843.12
  4. Step 4: Simplify right side
    63,573.68x = 4,988,945,565.59
  5. Step 5: Solve for x
    x = 4,988,945,565.59/63,573.68
  6. Step 6: Final answer
    x = 78,475.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.