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Finding the Fourth Proportional to 204,818.56, 307,367.16 and 125,691.28

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Solution

The fourth proportional to 204,818.56, 307,367.16 and 125,691.28 is: 188,622.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,818.56 : 307,367.16 = 125,691.28 : x
  2. Step 2: Convert to fraction form
    204,818.56/307,367.16 = 125,691.28/x
  3. Step 3: Cross multiply
    204,818.56x = 307,367.16 × 125,691.28
  4. Step 4: Simplify right side
    204,818.56x = 38,633,371,770.36
  5. Step 5: Solve for x
    x = 38,633,371,770.36/204,818.56
  6. Step 6: Final answer
    x = 188,622.42

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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.