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Finding the Fourth Proportional to 445,167.14, 667,744.76 and 108,206.87

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Solution

The fourth proportional to 445,167.14, 667,744.76 and 108,206.87 is: 162,308.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,167.14 : 667,744.76 = 108,206.87 : x
  2. Step 2: Convert to fraction form
    445,167.14/667,744.76 = 108,206.87/x
  3. Step 3: Cross multiply
    445,167.14x = 667,744.76 × 108,206.87
  4. Step 4: Simplify right side
    445,167.14x = 72,254,566,558.74
  5. Step 5: Solve for x
    x = 72,254,566,558.74/445,167.14
  6. Step 6: Final answer
    x = 162,308.85

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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.