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Finding the Fourth Proportional to 372,197.25, 558,221.76 and 105,959.97

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Solution

The fourth proportional to 372,197.25, 558,221.76 and 105,959.97 is: 158,918.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,197.25 : 558,221.76 = 105,959.97 : x
  2. Step 2: Convert to fraction form
    372,197.25/558,221.76 = 105,959.97/x
  3. Step 3: Cross multiply
    372,197.25x = 558,221.76 × 105,959.97
  4. Step 4: Simplify right side
    372,197.25x = 59,149,160,942.95
  5. Step 5: Solve for x
    x = 59,149,160,942.95/372,197.25
  6. Step 6: Final answer
    x = 158,918.86

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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.