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Finding the Fourth Proportional to 218,391.86, 327,589.62 and 60,632.61

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Solution

The fourth proportional to 218,391.86, 327,589.62 and 60,632.61 is: 90,949.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,391.86 : 327,589.62 = 60,632.61 : x
  2. Step 2: Convert to fraction form
    218,391.86/327,589.62 = 60,632.61/x
  3. Step 3: Cross multiply
    218,391.86x = 327,589.62 × 60,632.61
  4. Step 4: Simplify right side
    218,391.86x = 19,862,613,366.35
  5. Step 5: Solve for x
    x = 19,862,613,366.35/218,391.86
  6. Step 6: Final answer
    x = 90,949.42

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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.