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Finding the Fourth Proportional to 269,531.91, 404,546.87 and 136,505.67

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Solution

The fourth proportional to 269,531.91, 404,546.87 and 136,505.67 is: 204,884.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,531.91 : 404,546.87 = 136,505.67 : x
  2. Step 2: Convert to fraction form
    269,531.91/404,546.87 = 136,505.67/x
  3. Step 3: Cross multiply
    269,531.91x = 404,546.87 × 136,505.67
  4. Step 4: Simplify right side
    269,531.91x = 55,222,940,853.22
  5. Step 5: Solve for x
    x = 55,222,940,853.22/269,531.91
  6. Step 6: Final answer
    x = 204,884.61

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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.