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Finding the Fourth Proportional to 188,021.69, 281,949.51 and 88,101.17

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Solution

The fourth proportional to 188,021.69, 281,949.51 and 88,101.17 is: 132,112.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,021.69 : 281,949.51 = 88,101.17 : x
  2. Step 2: Convert to fraction form
    188,021.69/281,949.51 = 88,101.17/x
  3. Step 3: Cross multiply
    188,021.69x = 281,949.51 × 88,101.17
  4. Step 4: Simplify right side
    188,021.69x = 24,840,081,711.93
  5. Step 5: Solve for x
    x = 24,840,081,711.93/188,021.69
  6. Step 6: Final answer
    x = 132,112.85

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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.