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Finding the Fourth Proportional to 266,626, 400,086.62 and 159,747.31

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Solution

The fourth proportional to 266,626, 400,086.62 and 159,747.31 is: 239,709.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,626 : 400,086.62 = 159,747.31 : x
  2. Step 2: Convert to fraction form
    266,626/400,086.62 = 159,747.31/x
  3. Step 3: Cross multiply
    266,626x = 400,086.62 × 159,747.31
  4. Step 4: Simplify right side
    266,626x = 63,912,761,311.99
  5. Step 5: Solve for x
    x = 63,912,761,311.99/266,626
  6. Step 6: Final answer
    x = 239,709.41

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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.