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Finding the Fourth Proportional to 136,691.80, 204,576.90 and 125,632.60

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Solution

The fourth proportional to 136,691.80, 204,576.90 and 125,632.60 is: 188,025.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,691.80 : 204,576.90 = 125,632.60 : x
  2. Step 2: Convert to fraction form
    136,691.80/204,576.90 = 125,632.60/x
  3. Step 3: Cross multiply
    136,691.80x = 204,576.90 × 125,632.60
  4. Step 4: Simplify right side
    136,691.80x = 25,701,527,846.94
  5. Step 5: Solve for x
    x = 25,701,527,846.94/136,691.80
  6. Step 6: Final answer
    x = 188,025.38

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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.