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Finding the Fourth Proportional to 71,489.25, 98,663.67 and 41,281.92

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Solution

The fourth proportional to 71,489.25, 98,663.67 and 41,281.92 is: 56,973.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,489.25 : 98,663.67 = 41,281.92 : x
  2. Step 2: Convert to fraction form
    71,489.25/98,663.67 = 41,281.92/x
  3. Step 3: Cross multiply
    71,489.25x = 98,663.67 × 41,281.92
  4. Step 4: Simplify right side
    71,489.25x = 4,073,025,731.85
  5. Step 5: Solve for x
    x = 4,073,025,731.85/71,489.25
  6. Step 6: Final answer
    x = 56,973.96

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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.