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Finding the Fourth Proportional to 445,170.69, 667,682.66 and 125,344.71

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Solution

The fourth proportional to 445,170.69, 667,682.66 and 125,344.71 is: 187,996.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,170.69 : 667,682.66 = 125,344.71 : x
  2. Step 2: Convert to fraction form
    445,170.69/667,682.66 = 125,344.71/x
  3. Step 3: Cross multiply
    445,170.69x = 667,682.66 × 125,344.71
  4. Step 4: Simplify right side
    445,170.69x = 83,690,489,703.09
  5. Step 5: Solve for x
    x = 83,690,489,703.09/445,170.69
  6. Step 6: Final answer
    x = 187,996.41

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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.