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Finding the Fourth Proportional to 266,965.96, 400,444.22 and 67,281.88

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Solution

The fourth proportional to 266,965.96, 400,444.22 and 67,281.88 is: 100,921.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,965.96 : 400,444.22 = 67,281.88 : x
  2. Step 2: Convert to fraction form
    266,965.96/400,444.22 = 67,281.88/x
  3. Step 3: Cross multiply
    266,965.96x = 400,444.22 × 67,281.88
  4. Step 4: Simplify right side
    266,965.96x = 26,942,639,956.73
  5. Step 5: Solve for x
    x = 26,942,639,956.73/266,965.96
  6. Step 6: Final answer
    x = 100,921.63

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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.