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Finding the Fourth Proportional to 218,491.50, 327,755.04 and 60,719.97

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Solution

The fourth proportional to 218,491.50, 327,755.04 and 60,719.97 is: 91,084.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,491.50 : 327,755.04 = 60,719.97 : x
  2. Step 2: Convert to fraction form
    218,491.50/327,755.04 = 60,719.97/x
  3. Step 3: Cross multiply
    218,491.50x = 327,755.04 × 60,719.97
  4. Step 4: Simplify right side
    218,491.50x = 19,901,276,196.15
  5. Step 5: Solve for x
    x = 19,901,276,196.15/218,491.50
  6. Step 6: Final answer
    x = 91,084.90

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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.