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Finding the Fourth Proportional to 324,780.44, 487,121.45 and 125,194.82

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Solution

The fourth proportional to 324,780.44, 487,121.45 and 125,194.82 is: 187,773.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,780.44 : 487,121.45 = 125,194.82 : x
  2. Step 2: Convert to fraction form
    324,780.44/487,121.45 = 125,194.82/x
  3. Step 3: Cross multiply
    324,780.44x = 487,121.45 × 125,194.82
  4. Step 4: Simplify right side
    324,780.44x = 60,985,079,189.31
  5. Step 5: Solve for x
    x = 60,985,079,189.31/324,780.44
  6. Step 6: Final answer
    x = 187,773.25

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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.