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Finding the Fourth Proportional to 162,500.74, 243,721.23 and 73,732.90

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Solution

The fourth proportional to 162,500.74, 243,721.23 and 73,732.90 is: 110,585.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,500.74 : 243,721.23 = 73,732.90 : x
  2. Step 2: Convert to fraction form
    162,500.74/243,721.23 = 73,732.90/x
  3. Step 3: Cross multiply
    162,500.74x = 243,721.23 × 73,732.90
  4. Step 4: Simplify right side
    162,500.74x = 17,970,273,079.47
  5. Step 5: Solve for x
    x = 17,970,273,079.47/162,500.74
  6. Step 6: Final answer
    x = 110,585.79

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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.