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Finding the Fourth Proportional to 73,972.88, 102,060.24 and 43,761.68

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Solution

The fourth proportional to 73,972.88, 102,060.24 and 43,761.68 is: 60,377.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,972.88 : 102,060.24 = 43,761.68 : x
  2. Step 2: Convert to fraction form
    73,972.88/102,060.24 = 43,761.68/x
  3. Step 3: Cross multiply
    73,972.88x = 102,060.24 × 43,761.68
  4. Step 4: Simplify right side
    73,972.88x = 4,466,327,563.60
  5. Step 5: Solve for x
    x = 4,466,327,563.60/73,972.88
  6. Step 6: Final answer
    x = 60,377.91

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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.