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Finding the Fourth Proportional to 266,262.39, 399,160.31 and 100,167.03

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Solution

The fourth proportional to 266,262.39, 399,160.31 and 100,167.03 is: 150,162.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,262.39 : 399,160.31 = 100,167.03 : x
  2. Step 2: Convert to fraction form
    266,262.39/399,160.31 = 100,167.03/x
  3. Step 3: Cross multiply
    266,262.39x = 399,160.31 × 100,167.03
  4. Step 4: Simplify right side
    266,262.39x = 39,982,702,245.74
  5. Step 5: Solve for x
    x = 39,982,702,245.74/266,262.39
  6. Step 6: Final answer
    x = 150,162.79

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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.