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Finding the Fourth Proportional to 138,049.92, 207,072.72 and 44,562.96

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Solution

The fourth proportional to 138,049.92, 207,072.72 and 44,562.96 is: 66,843.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,049.92 : 207,072.72 = 44,562.96 : x
  2. Step 2: Convert to fraction form
    138,049.92/207,072.72 = 44,562.96/x
  3. Step 3: Cross multiply
    138,049.92x = 207,072.72 × 44,562.96
  4. Step 4: Simplify right side
    138,049.92x = 9,227,773,338.45
  5. Step 5: Solve for x
    x = 9,227,773,338.45/138,049.92
  6. Step 6: Final answer
    x = 66,843.74

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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.