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Finding the Fourth Proportional to 324,751.38, 448,122.69 and 188,760.66

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Solution

The fourth proportional to 324,751.38, 448,122.69 and 188,760.66 is: 260,469.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,751.38 : 448,122.69 = 188,760.66 : x
  2. Step 2: Convert to fraction form
    324,751.38/448,122.69 = 188,760.66/x
  3. Step 3: Cross multiply
    324,751.38x = 448,122.69 × 188,760.66
  4. Step 4: Simplify right side
    324,751.38x = 84,587,934,725.38
  5. Step 5: Solve for x
    x = 84,587,934,725.38/324,751.38
  6. Step 6: Final answer
    x = 260,469.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.