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Finding the Fourth Proportional to 218,644.56, 327,967.20 and 60,872.94

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Solution

The fourth proportional to 218,644.56, 327,967.20 and 60,872.94 is: 91,309.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,644.56 : 327,967.20 = 60,872.94 : x
  2. Step 2: Convert to fraction form
    218,644.56/327,967.20 = 60,872.94/x
  3. Step 3: Cross multiply
    218,644.56x = 327,967.20 × 60,872.94
  4. Step 4: Simplify right side
    218,644.56x = 19,964,327,687.57
  5. Step 5: Solve for x
    x = 19,964,327,687.57/218,644.56
  6. Step 6: Final answer
    x = 91,309.51

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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.