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Finding the Fourth Proportional to 168,491.62, 252,732.54 and 68,627.12

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Solution

The fourth proportional to 168,491.62, 252,732.54 and 68,627.12 is: 102,938.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,491.62 : 252,732.54 = 68,627.12 : x
  2. Step 2: Convert to fraction form
    168,491.62/252,732.54 = 68,627.12/x
  3. Step 3: Cross multiply
    168,491.62x = 252,732.54 × 68,627.12
  4. Step 4: Simplify right side
    168,491.62x = 17,344,306,350.48
  5. Step 5: Solve for x
    x = 17,344,306,350.48/168,491.62
  6. Step 6: Final answer
    x = 102,938.69

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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.