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Finding the Fourth Proportional to 444,605.38, 666,909.78 and 107,645.47

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Solution

The fourth proportional to 444,605.38, 666,909.78 and 107,645.47 is: 161,468.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,605.38 : 666,909.78 = 107,645.47 : x
  2. Step 2: Convert to fraction form
    444,605.38/666,909.78 = 107,645.47/x
  3. Step 3: Cross multiply
    444,605.38x = 666,909.78 × 107,645.47
  4. Step 4: Simplify right side
    444,605.38x = 71,789,816,715.70
  5. Step 5: Solve for x
    x = 71,789,816,715.70/444,605.38
  6. Step 6: Final answer
    x = 161,468.62

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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.