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Finding the Fourth Proportional to 339,428.43, 468,359.19 and 196,160.82

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Solution

The fourth proportional to 339,428.43, 468,359.19 and 196,160.82 is: 270,671.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,428.43 : 468,359.19 = 196,160.82 : x
  2. Step 2: Convert to fraction form
    339,428.43/468,359.19 = 196,160.82/x
  3. Step 3: Cross multiply
    339,428.43x = 468,359.19 × 196,160.82
  4. Step 4: Simplify right side
    339,428.43x = 91,873,722,764.94
  5. Step 5: Solve for x
    x = 91,873,722,764.94/339,428.43
  6. Step 6: Final answer
    x = 270,671.85

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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.