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Finding the Fourth Proportional to 203,494.10, 305,241.15 and 132,635.30

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Solution

The fourth proportional to 203,494.10, 305,241.15 and 132,635.30 is: 198,952.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,494.10 : 305,241.15 = 132,635.30 : x
  2. Step 2: Convert to fraction form
    203,494.10/305,241.15 = 132,635.30/x
  3. Step 3: Cross multiply
    203,494.10x = 305,241.15 × 132,635.30
  4. Step 4: Simplify right side
    203,494.10x = 40,485,751,502.60
  5. Step 5: Solve for x
    x = 40,485,751,502.60/203,494.10
  6. Step 6: Final answer
    x = 198,952.95

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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.