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Finding the Fourth Proportional to 63,778.52, 87,984.90 and 41,124.78

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Solution

The fourth proportional to 63,778.52, 87,984.90 and 41,124.78 is: 56,733.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,778.52 : 87,984.90 = 41,124.78 : x
  2. Step 2: Convert to fraction form
    63,778.52/87,984.90 = 41,124.78/x
  3. Step 3: Cross multiply
    63,778.52x = 87,984.90 × 41,124.78
  4. Step 4: Simplify right side
    63,778.52x = 3,618,359,450.20
  5. Step 5: Solve for x
    x = 3,618,359,450.20/63,778.52
  6. Step 6: Final answer
    x = 56,733.20

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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.