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Finding the Fourth Proportional to 491,944.56, 737,843.40 and 136,921.56

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Solution

The fourth proportional to 491,944.56, 737,843.40 and 136,921.56 is: 205,361.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,944.56 : 737,843.40 = 136,921.56 : x
  2. Step 2: Convert to fraction form
    491,944.56/737,843.40 = 136,921.56/x
  3. Step 3: Cross multiply
    491,944.56x = 737,843.40 × 136,921.56
  4. Step 4: Simplify right side
    491,944.56x = 101,026,669,363.70
  5. Step 5: Solve for x
    x = 101,026,669,363.70/491,944.56
  6. Step 6: Final answer
    x = 205,361.90

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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.