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Finding the Fourth Proportional to 324,961.96, 487,392.54 and 125,375.80

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Solution

The fourth proportional to 324,961.96, 487,392.54 and 125,375.80 is: 188,044.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,961.96 : 487,392.54 = 125,375.80 : x
  2. Step 2: Convert to fraction form
    324,961.96/487,392.54 = 125,375.80/x
  3. Step 3: Cross multiply
    324,961.96x = 487,392.54 × 125,375.80
  4. Step 4: Simplify right side
    324,961.96x = 61,107,229,616.53
  5. Step 5: Solve for x
    x = 61,107,229,616.53/324,961.96
  6. Step 6: Final answer
    x = 188,044.25

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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.