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Finding the Fourth Proportional to 123,691.44, 185,536.70 and 44,787.21

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Solution

The fourth proportional to 123,691.44, 185,536.70 and 44,787.21 is: 67,180.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,691.44 : 185,536.70 = 44,787.21 : x
  2. Step 2: Convert to fraction form
    123,691.44/185,536.70 = 44,787.21/x
  3. Step 3: Cross multiply
    123,691.44x = 185,536.70 × 44,787.21
  4. Step 4: Simplify right side
    123,691.44x = 8,309,670,921.67
  5. Step 5: Solve for x
    x = 8,309,670,921.67/123,691.44
  6. Step 6: Final answer
    x = 67,180.65

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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.