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Finding the Fourth Proportional to 68,747.31, 103,147.16 and 35,446.14

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Solution

The fourth proportional to 68,747.31, 103,147.16 and 35,446.14 is: 53,182.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,747.31 : 103,147.16 = 35,446.14 : x
  2. Step 2: Convert to fraction form
    68,747.31/103,147.16 = 35,446.14/x
  3. Step 3: Cross multiply
    68,747.31x = 103,147.16 × 35,446.14
  4. Step 4: Simplify right side
    68,747.31x = 3,656,168,496.73
  5. Step 5: Solve for x
    x = 3,656,168,496.73/68,747.31
  6. Step 6: Final answer
    x = 53,182.71

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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.