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Finding the Fourth Proportional to 188,286.48, 259,913.88 and 134,593.20

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Solution

The fourth proportional to 188,286.48, 259,913.88 and 134,593.20 is: 185,794.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,286.48 : 259,913.88 = 134,593.20 : x
  2. Step 2: Convert to fraction form
    188,286.48/259,913.88 = 134,593.20/x
  3. Step 3: Cross multiply
    188,286.48x = 259,913.88 × 134,593.20
  4. Step 4: Simplify right side
    188,286.48x = 34,982,640,833.62
  5. Step 5: Solve for x
    x = 34,982,640,833.62/188,286.48
  6. Step 6: Final answer
    x = 185,794.76

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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.