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Finding the Fourth Proportional to 231,446.70, 347,170.05 and 73,691.10

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Solution

The fourth proportional to 231,446.70, 347,170.05 and 73,691.10 is: 110,536.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,446.70 : 347,170.05 = 73,691.10 : x
  2. Step 2: Convert to fraction form
    231,446.70/347,170.05 = 73,691.10/x
  3. Step 3: Cross multiply
    231,446.70x = 347,170.05 × 73,691.10
  4. Step 4: Simplify right side
    231,446.70x = 25,583,342,871.56
  5. Step 5: Solve for x
    x = 25,583,342,871.56/231,446.70
  6. Step 6: Final answer
    x = 110,536.65

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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.