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Finding the Fourth Proportional to 218,691.90, 327,527.46 and 168,372.54

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Solution

The fourth proportional to 218,691.90, 327,527.46 and 168,372.54 is: 252,165.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,691.90 : 327,527.46 = 168,372.54 : x
  2. Step 2: Convert to fraction form
    218,691.90/327,527.46 = 168,372.54/x
  3. Step 3: Cross multiply
    218,691.90x = 327,527.46 × 168,372.54
  4. Step 4: Simplify right side
    218,691.90x = 55,146,630,359.95
  5. Step 5: Solve for x
    x = 55,146,630,359.95/218,691.90
  6. Step 6: Final answer
    x = 252,165.86

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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.