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Finding the Fourth Proportional to 218,049.40, 327,110.52 and 68,259.88

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Solution

The fourth proportional to 218,049.40, 327,110.52 and 68,259.88 is: 102,401.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,049.40 : 327,110.52 = 68,259.88 : x
  2. Step 2: Convert to fraction form
    218,049.40/327,110.52 = 68,259.88/x
  3. Step 3: Cross multiply
    218,049.40x = 327,110.52 × 68,259.88
  4. Step 4: Simplify right side
    218,049.40x = 22,328,524,841.94
  5. Step 5: Solve for x
    x = 22,328,524,841.94/218,049.40
  6. Step 6: Final answer
    x = 102,401.22

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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.