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Finding the Fourth Proportional to 273,194.10, 409,791.15 and 166,905.90

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Solution

The fourth proportional to 273,194.10, 409,791.15 and 166,905.90 is: 250,358.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,194.10 : 409,791.15 = 166,905.90 : x
  2. Step 2: Convert to fraction form
    273,194.10/409,791.15 = 166,905.90/x
  3. Step 3: Cross multiply
    273,194.10x = 409,791.15 × 166,905.90
  4. Step 4: Simplify right side
    273,194.10x = 68,396,560,702.79
  5. Step 5: Solve for x
    x = 68,396,560,702.79/273,194.10
  6. Step 6: Final answer
    x = 250,358.85

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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.