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Finding the Fourth Proportional to 203,961.62, 305,910.83 and 104,195.54

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Solution

The fourth proportional to 203,961.62, 305,910.83 and 104,195.54 is: 156,277.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,961.62 : 305,910.83 = 104,195.54 : x
  2. Step 2: Convert to fraction form
    203,961.62/305,910.83 = 104,195.54/x
  3. Step 3: Cross multiply
    203,961.62x = 305,910.83 × 104,195.54
  4. Step 4: Simplify right side
    203,961.62x = 31,874,542,073.17
  5. Step 5: Solve for x
    x = 31,874,542,073.17/203,961.62
  6. Step 6: Final answer
    x = 156,277.16

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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.