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Finding the Fourth Proportional to 136,286.66, 188,025.13 and 136,076.47

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Solution

The fourth proportional to 136,286.66, 188,025.13 and 136,076.47 is: 187,735.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,286.66 : 188,025.13 = 136,076.47 : x
  2. Step 2: Convert to fraction form
    136,286.66/188,025.13 = 136,076.47/x
  3. Step 3: Cross multiply
    136,286.66x = 188,025.13 × 136,076.47
  4. Step 4: Simplify right side
    136,286.66x = 25,585,795,961.69
  5. Step 5: Solve for x
    x = 25,585,795,961.69/136,286.66
  6. Step 6: Final answer
    x = 187,735.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.