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Finding the Fourth Proportional to 218,067.66, 327,103.92 and 68,301.90

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Solution

The fourth proportional to 218,067.66, 327,103.92 and 68,301.90 is: 102,453.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,067.66 : 327,103.92 = 68,301.90 : x
  2. Step 2: Convert to fraction form
    218,067.66/327,103.92 = 68,301.90/x
  3. Step 3: Cross multiply
    218,067.66x = 327,103.92 × 68,301.90
  4. Step 4: Simplify right side
    218,067.66x = 22,341,819,233.45
  5. Step 5: Solve for x
    x = 22,341,819,233.45/218,067.66
  6. Step 6: Final answer
    x = 102,453.61

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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.