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Finding the Fourth Proportional to 218,115.54, 327,164.04 and 68,352.53

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Solution

The fourth proportional to 218,115.54, 327,164.04 and 68,352.53 is: 102,525.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,115.54 : 327,164.04 = 68,352.53 : x
  2. Step 2: Convert to fraction form
    218,115.54/327,164.04 = 68,352.53/x
  3. Step 3: Cross multiply
    218,115.54x = 327,164.04 × 68,352.53
  4. Step 4: Simplify right side
    218,115.54x = 22,362,488,223.20
  5. Step 5: Solve for x
    x = 22,362,488,223.20/218,115.54
  6. Step 6: Final answer
    x = 102,525.88

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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.