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Finding the Fourth Proportional to 203,732.62, 281,136.94 and 113,081.46

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Solution

The fourth proportional to 203,732.62, 281,136.94 and 113,081.46 is: 156,044.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,732.62 : 281,136.94 = 113,081.46 : x
  2. Step 2: Convert to fraction form
    203,732.62/281,136.94 = 113,081.46/x
  3. Step 3: Cross multiply
    203,732.62x = 281,136.94 × 113,081.46
  4. Step 4: Simplify right side
    203,732.62x = 31,791,375,635.13
  5. Step 5: Solve for x
    x = 31,791,375,635.13/203,732.62
  6. Step 6: Final answer
    x = 156,044.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.