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Finding the Fourth Proportional to 95,201.20, 142,801.80 and 60,209.20

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Solution

The fourth proportional to 95,201.20, 142,801.80 and 60,209.20 is: 90,313.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,201.20 : 142,801.80 = 60,209.20 : x
  2. Step 2: Convert to fraction form
    95,201.20/142,801.80 = 60,209.20/x
  3. Step 3: Cross multiply
    95,201.20x = 142,801.80 × 60,209.20
  4. Step 4: Simplify right side
    95,201.20x = 8,597,982,136.56
  5. Step 5: Solve for x
    x = 8,597,982,136.56/95,201.20
  6. Step 6: Final answer
    x = 90,313.80

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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.