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Finding the Fourth Proportional to 61,793.60, 92,766.13 and 40,751.21

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Solution

The fourth proportional to 61,793.60, 92,766.13 and 40,751.21 is: 61,176.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,793.60 : 92,766.13 = 40,751.21 : x
  2. Step 2: Convert to fraction form
    61,793.60/92,766.13 = 40,751.21/x
  3. Step 3: Cross multiply
    61,793.60x = 92,766.13 × 40,751.21
  4. Step 4: Simplify right side
    61,793.60x = 3,780,332,174.55
  5. Step 5: Solve for x
    x = 3,780,332,174.55/61,793.60
  6. Step 6: Final answer
    x = 61,176.76

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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.