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Finding the Fourth Proportional to 137,375.74, 206,093.20 and 42,604.01

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Solution

The fourth proportional to 137,375.74, 206,093.20 and 42,604.01 is: 63,915.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,375.74 : 206,093.20 = 42,604.01 : x
  2. Step 2: Convert to fraction form
    137,375.74/206,093.20 = 42,604.01/x
  3. Step 3: Cross multiply
    137,375.74x = 206,093.20 × 42,604.01
  4. Step 4: Simplify right side
    137,375.74x = 8,780,396,753.73
  5. Step 5: Solve for x
    x = 8,780,396,753.73/137,375.74
  6. Step 6: Final answer
    x = 63,915.19

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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.