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Finding the Fourth Proportional to 218,049.36, 327,102.12 and 68,296.56

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Solution

The fourth proportional to 218,049.36, 327,102.12 and 68,296.56 is: 102,453.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,049.36 : 327,102.12 = 68,296.56 : x
  2. Step 2: Convert to fraction form
    218,049.36/327,102.12 = 68,296.56/x
  3. Step 3: Cross multiply
    218,049.36x = 327,102.12 × 68,296.56
  4. Step 4: Simplify right side
    218,049.36x = 22,339,949,564.71
  5. Step 5: Solve for x
    x = 22,339,949,564.71/218,049.36
  6. Step 6: Final answer
    x = 102,453.64

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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.