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Finding the Fourth Proportional to 115,171.48, 158,882.34 and 67,395.52

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Solution

The fourth proportional to 115,171.48, 158,882.34 and 67,395.52 is: 92,974.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,171.48 : 158,882.34 = 67,395.52 : x
  2. Step 2: Convert to fraction form
    115,171.48/158,882.34 = 67,395.52/x
  3. Step 3: Cross multiply
    115,171.48x = 158,882.34 × 67,395.52
  4. Step 4: Simplify right side
    115,171.48x = 10,707,957,923.12
  5. Step 5: Solve for x
    x = 10,707,957,923.12/115,171.48
  6. Step 6: Final answer
    x = 92,974.04

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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.