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Finding the Fourth Proportional to 135,626.60, 203,439.90 and 131,738.60

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Solution

The fourth proportional to 135,626.60, 203,439.90 and 131,738.60 is: 197,607.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,626.60 : 203,439.90 = 131,738.60 : x
  2. Step 2: Convert to fraction form
    135,626.60/203,439.90 = 131,738.60/x
  3. Step 3: Cross multiply
    135,626.60x = 203,439.90 × 131,738.60
  4. Step 4: Simplify right side
    135,626.60x = 26,800,887,610.14
  5. Step 5: Solve for x
    x = 26,800,887,610.14/135,626.60
  6. Step 6: Final answer
    x = 197,607.90

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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.