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Finding the Fourth Proportional to 61,729.47, 92,717.22 and 58,247.88

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Solution

The fourth proportional to 61,729.47, 92,717.22 and 58,247.88 is: 87,487.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,729.47 : 92,717.22 = 58,247.88 : x
  2. Step 2: Convert to fraction form
    61,729.47/92,717.22 = 58,247.88/x
  3. Step 3: Cross multiply
    61,729.47x = 92,717.22 × 58,247.88
  4. Step 4: Simplify right side
    61,729.47x = 5,400,581,504.49
  5. Step 5: Solve for x
    x = 5,400,581,504.49/61,729.47
  6. Step 6: Final answer
    x = 87,487.90

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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.