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Finding the Fourth Proportional to 218,380.53, 327,580.11 and 76,240.11

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Solution

The fourth proportional to 218,380.53, 327,580.11 and 76,240.11 is: 114,363.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,380.53 : 327,580.11 = 76,240.11 : x
  2. Step 2: Convert to fraction form
    218,380.53/327,580.11 = 76,240.11/x
  3. Step 3: Cross multiply
    218,380.53x = 327,580.11 × 76,240.11
  4. Step 4: Simplify right side
    218,380.53x = 24,974,743,620.21
  5. Step 5: Solve for x
    x = 24,974,743,620.21/218,380.53
  6. Step 6: Final answer
    x = 114,363.42

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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.