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Finding the Fourth Proportional to 324,882.63, 487,406.97 and 125,149.46

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Solution

The fourth proportional to 324,882.63, 487,406.97 and 125,149.46 is: 187,756.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,882.63 : 487,406.97 = 125,149.46 : x
  2. Step 2: Convert to fraction form
    324,882.63/487,406.97 = 125,149.46/x
  3. Step 3: Cross multiply
    324,882.63x = 487,406.97 × 125,149.46
  4. Step 4: Simplify right side
    324,882.63x = 60,998,716,658.70
  5. Step 5: Solve for x
    x = 60,998,716,658.70/324,882.63
  6. Step 6: Final answer
    x = 187,756.16

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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.