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Finding the Fourth Proportional to 92,614.44, 138,863.28 and 60,990.48

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Solution

The fourth proportional to 92,614.44, 138,863.28 and 60,990.48 is: 91,447.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,614.44 : 138,863.28 = 60,990.48 : x
  2. Step 2: Convert to fraction form
    92,614.44/138,863.28 = 60,990.48/x
  3. Step 3: Cross multiply
    92,614.44x = 138,863.28 × 60,990.48
  4. Step 4: Simplify right side
    92,614.44x = 8,469,338,101.57
  5. Step 5: Solve for x
    x = 8,469,338,101.57/92,614.44
  6. Step 6: Final answer
    x = 91,447.27

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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.