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Finding the Fourth Proportional to 204,839.20, 307,258.80 and 169,847.20

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Solution

The fourth proportional to 204,839.20, 307,258.80 and 169,847.20 is: 254,770.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,839.20 : 307,258.80 = 169,847.20 : x
  2. Step 2: Convert to fraction form
    204,839.20/307,258.80 = 169,847.20/x
  3. Step 3: Cross multiply
    204,839.20x = 307,258.80 × 169,847.20
  4. Step 4: Simplify right side
    204,839.20x = 52,187,046,855.36
  5. Step 5: Solve for x
    x = 52,187,046,855.36/204,839.20
  6. Step 6: Final answer
    x = 254,770.80

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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.