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Finding the Fourth Proportional to 218,385.46, 327,580.01 and 68,622.44

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Solution

The fourth proportional to 218,385.46, 327,580.01 and 68,622.44 is: 102,934.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,385.46 : 327,580.01 = 68,622.44 : x
  2. Step 2: Convert to fraction form
    218,385.46/327,580.01 = 68,622.44/x
  3. Step 3: Cross multiply
    218,385.46x = 327,580.01 × 68,622.44
  4. Step 4: Simplify right side
    218,385.46x = 22,479,338,115.08
  5. Step 5: Solve for x
    x = 22,479,338,115.08/218,385.46
  6. Step 6: Final answer
    x = 102,934.23

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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.