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Finding the Fourth Proportional to 204,216.44, 306,324.80 and 63,986

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Solution

The fourth proportional to 204,216.44, 306,324.80 and 63,986 is: 95,979.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,216.44 : 306,324.80 = 63,986 : x
  2. Step 2: Convert to fraction form
    204,216.44/306,324.80 = 63,986/x
  3. Step 3: Cross multiply
    204,216.44x = 306,324.80 × 63,986
  4. Step 4: Simplify right side
    204,216.44x = 19,600,498,332.87
  5. Step 5: Solve for x
    x = 19,600,498,332.87/204,216.44
  6. Step 6: Final answer
    x = 95,979.04

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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.