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Finding the Fourth Proportional to 136,219.60, 203,940.60 and 132,331.60

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Solution

The fourth proportional to 136,219.60, 203,940.60 and 132,331.60 is: 198,119.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,219.60 : 203,940.60 = 132,331.60 : x
  2. Step 2: Convert to fraction form
    136,219.60/203,940.60 = 132,331.60/x
  3. Step 3: Cross multiply
    136,219.60x = 203,940.60 × 132,331.60
  4. Step 4: Simplify right side
    136,219.60x = 26,987,785,902.96
  5. Step 5: Solve for x
    x = 26,987,785,902.96/136,219.60
  6. Step 6: Final answer
    x = 198,119.70

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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.