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Finding the Fourth Proportional to 203,959.20, 305,939.04 and 63,718.56

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Solution

The fourth proportional to 203,959.20, 305,939.04 and 63,718.56 is: 95,577.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,959.20 : 305,939.04 = 63,718.56 : x
  2. Step 2: Convert to fraction form
    203,959.20/305,939.04 = 63,718.56/x
  3. Step 3: Cross multiply
    203,959.20x = 305,939.04 × 63,718.56
  4. Step 4: Simplify right side
    203,959.20x = 19,493,995,076.58
  5. Step 5: Solve for x
    x = 19,493,995,076.58/203,959.20
  6. Step 6: Final answer
    x = 95,577.91

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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.