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Finding the Fourth Proportional to 247,786.44, 341,934.31 and 140,354.31

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Solution

The fourth proportional to 247,786.44, 341,934.31 and 140,354.31 is: 193,682.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,786.44 : 341,934.31 = 140,354.31 : x
  2. Step 2: Convert to fraction form
    247,786.44/341,934.31 = 140,354.31/x
  3. Step 3: Cross multiply
    247,786.44x = 341,934.31 × 140,354.31
  4. Step 4: Simplify right side
    247,786.44x = 47,991,954,145.38
  5. Step 5: Solve for x
    x = 47,991,954,145.38/247,786.44
  6. Step 6: Final answer
    x = 193,682.73

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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.