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Finding the Fourth Proportional to 360,939.09, 541,221.75 and 192,414.15

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Solution

The fourth proportional to 360,939.09, 541,221.75 and 192,414.15 is: 288,521.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,939.09 : 541,221.75 = 192,414.15 : x
  2. Step 2: Convert to fraction form
    360,939.09/541,221.75 = 192,414.15/x
  3. Step 3: Cross multiply
    360,939.09x = 541,221.75 × 192,414.15
  4. Step 4: Simplify right side
    360,939.09x = 104,138,722,987.76
  5. Step 5: Solve for x
    x = 104,138,722,987.76/360,939.09
  6. Step 6: Final answer
    x = 288,521.60

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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.