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Finding the Fourth Proportional to 218,414.88, 327,585.78 and 60,659.28

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Solution

The fourth proportional to 218,414.88, 327,585.78 and 60,659.28 is: 90,978.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,414.88 : 327,585.78 = 60,659.28 : x
  2. Step 2: Convert to fraction form
    218,414.88/327,585.78 = 60,659.28/x
  3. Step 3: Cross multiply
    218,414.88x = 327,585.78 × 60,659.28
  4. Step 4: Simplify right side
    218,414.88x = 19,871,117,553.04
  5. Step 5: Solve for x
    x = 19,871,117,553.04/218,414.88
  6. Step 6: Final answer
    x = 90,978.77

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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.