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Finding the Fourth Proportional to 203,879.87, 281,354.23 and 113,244.27

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Solution

The fourth proportional to 203,879.87, 281,354.23 and 113,244.27 is: 156,277.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,879.87 : 281,354.23 = 113,244.27 : x
  2. Step 2: Convert to fraction form
    203,879.87/281,354.23 = 113,244.27/x
  3. Step 3: Cross multiply
    203,879.87x = 281,354.23 × 113,244.27
  4. Step 4: Simplify right side
    203,879.87x = 31,861,753,049.57
  5. Step 5: Solve for x
    x = 31,861,753,049.57/203,879.87
  6. Step 6: Final answer
    x = 156,277.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.