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Finding the Fourth Proportional to 204,425.60, 306,516.90 and 125,596.40

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Solution

The fourth proportional to 204,425.60, 306,516.90 and 125,596.40 is: 188,319.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,425.60 : 306,516.90 = 125,596.40 : x
  2. Step 2: Convert to fraction form
    204,425.60/306,516.90 = 125,596.40/x
  3. Step 3: Cross multiply
    204,425.60x = 306,516.90 × 125,596.40
  4. Step 4: Simplify right side
    204,425.60x = 38,497,419,179.16
  5. Step 5: Solve for x
    x = 38,497,419,179.16/204,425.60
  6. Step 6: Final answer
    x = 188,319.95

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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.