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Finding the Fourth Proportional to 71,061.60, 98,062.44 and 39,229.82

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Solution

The fourth proportional to 71,061.60, 98,062.44 and 39,229.82 is: 54,135.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,061.60 : 98,062.44 = 39,229.82 : x
  2. Step 2: Convert to fraction form
    71,061.60/98,062.44 = 39,229.82/x
  3. Step 3: Cross multiply
    71,061.60x = 98,062.44 × 39,229.82
  4. Step 4: Simplify right side
    71,061.60x = 3,846,971,869.96
  5. Step 5: Solve for x
    x = 3,846,971,869.96/71,061.60
  6. Step 6: Final answer
    x = 54,135.73

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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.