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Finding the Fourth Proportional to 218,440.68, 327,788.40 and 92,073.20

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Solution

The fourth proportional to 218,440.68, 327,788.40 and 92,073.20 is: 138,163.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,440.68 : 327,788.40 = 92,073.20 : x
  2. Step 2: Convert to fraction form
    218,440.68/327,788.40 = 92,073.20/x
  3. Step 3: Cross multiply
    218,440.68x = 327,788.40 × 92,073.20
  4. Step 4: Simplify right side
    218,440.68x = 30,180,526,910.88
  5. Step 5: Solve for x
    x = 30,180,526,910.88/218,440.68
  6. Step 6: Final answer
    x = 138,163.49

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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.