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Finding the Fourth Proportional to 188,164.54, 259,882.57 and 123,920.96

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Solution

The fourth proportional to 188,164.54, 259,882.57 and 123,920.96 is: 171,152.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,164.54 : 259,882.57 = 123,920.96 : x
  2. Step 2: Convert to fraction form
    188,164.54/259,882.57 = 123,920.96/x
  3. Step 3: Cross multiply
    188,164.54x = 259,882.57 × 123,920.96
  4. Step 4: Simplify right side
    188,164.54x = 32,204,897,376.66
  5. Step 5: Solve for x
    x = 32,204,897,376.66/188,164.54
  6. Step 6: Final answer
    x = 171,152.85

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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.