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Finding the Fourth Proportional to 297,991.65, 447,186.23 and 108,451.97

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Solution

The fourth proportional to 297,991.65, 447,186.23 and 108,451.97 is: 162,750.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,991.65 : 447,186.23 = 108,451.97 : x
  2. Step 2: Convert to fraction form
    297,991.65/447,186.23 = 108,451.97/x
  3. Step 3: Cross multiply
    297,991.65x = 447,186.23 × 108,451.97
  4. Step 4: Simplify right side
    297,991.65x = 48,498,225,635.57
  5. Step 5: Solve for x
    x = 48,498,225,635.57/297,991.65
  6. Step 6: Final answer
    x = 162,750.28

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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.