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Finding the Fourth Proportional to 294,268.38, 441,446.49 and 136,512.78

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Solution

The fourth proportional to 294,268.38, 441,446.49 and 136,512.78 is: 204,789.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,268.38 : 441,446.49 = 136,512.78 : x
  2. Step 2: Convert to fraction form
    294,268.38/441,446.49 = 136,512.78/x
  3. Step 3: Cross multiply
    294,268.38x = 441,446.49 × 136,512.78
  4. Step 4: Simplify right side
    294,268.38x = 60,263,087,571.14
  5. Step 5: Solve for x
    x = 60,263,087,571.14/294,268.38
  6. Step 6: Final answer
    x = 204,789.54

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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.