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Finding the Fourth Proportional to 252,979.70, 379,469.55 and 95,243.54

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Solution

The fourth proportional to 252,979.70, 379,469.55 and 95,243.54 is: 142,865.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,979.70 : 379,469.55 = 95,243.54 : x
  2. Step 2: Convert to fraction form
    252,979.70/379,469.55 = 95,243.54/x
  3. Step 3: Cross multiply
    252,979.70x = 379,469.55 × 95,243.54
  4. Step 4: Simplify right side
    252,979.70x = 36,142,023,264.21
  5. Step 5: Solve for x
    x = 36,142,023,264.21/252,979.70
  6. Step 6: Final answer
    x = 142,865.31

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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.