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Finding the Fourth Proportional to 136,218.60, 203,939.10 and 132,330.60

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Solution

The fourth proportional to 136,218.60, 203,939.10 and 132,330.60 is: 198,118.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,218.60 : 203,939.10 = 132,330.60 : x
  2. Step 2: Convert to fraction form
    136,218.60/203,939.10 = 132,330.60/x
  3. Step 3: Cross multiply
    136,218.60x = 203,939.10 × 132,330.60
  4. Step 4: Simplify right side
    136,218.60x = 26,987,383,466.46
  5. Step 5: Solve for x
    x = 26,987,383,466.46/136,218.60
  6. Step 6: Final answer
    x = 198,118.20

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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.