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Finding the Fourth Proportional to 266,980.96, 400,251.88 and 124,755.88

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Solution

The fourth proportional to 266,980.96, 400,251.88 and 124,755.88 is: 187,031.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,980.96 : 400,251.88 = 124,755.88 : x
  2. Step 2: Convert to fraction form
    266,980.96/400,251.88 = 124,755.88/x
  3. Step 3: Cross multiply
    266,980.96x = 400,251.88 × 124,755.88
  4. Step 4: Simplify right side
    266,980.96x = 49,933,775,511.05
  5. Step 5: Solve for x
    x = 49,933,775,511.05/266,980.96
  6. Step 6: Final answer
    x = 187,031.22

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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.