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Finding the Fourth Proportional to 339,138.30, 468,048 and 193,957.56

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Solution

The fourth proportional to 339,138.30, 468,048 and 193,957.56 is: 267,682.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,138.30 : 468,048 = 193,957.56 : x
  2. Step 2: Convert to fraction form
    339,138.30/468,048 = 193,957.56/x
  3. Step 3: Cross multiply
    339,138.30x = 468,048 × 193,957.56
  4. Step 4: Simplify right side
    339,138.30x = 90,781,448,042.88
  5. Step 5: Solve for x
    x = 90,781,448,042.88/339,138.30
  6. Step 6: Final answer
    x = 267,682.68

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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.