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Finding the Fourth Proportional to 204,818.81, 307,367.54 and 125,691.53

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Solution

The fourth proportional to 204,818.81, 307,367.54 and 125,691.53 is: 188,622.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,818.81 : 307,367.54 = 125,691.53 : x
  2. Step 2: Convert to fraction form
    204,818.81/307,367.54 = 125,691.53/x
  3. Step 3: Cross multiply
    204,818.81x = 307,367.54 × 125,691.53
  4. Step 4: Simplify right side
    204,818.81x = 38,633,496,374.94
  5. Step 5: Solve for x
    x = 38,633,496,374.94/204,818.81
  6. Step 6: Final answer
    x = 188,622.79

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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.