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Finding the Fourth Proportional to 136,233.60, 203,961.60 and 132,345.60

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Solution

The fourth proportional to 136,233.60, 203,961.60 and 132,345.60 is: 198,140.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,233.60 : 203,961.60 = 132,345.60 : x
  2. Step 2: Convert to fraction form
    136,233.60/203,961.60 = 132,345.60/x
  3. Step 3: Cross multiply
    136,233.60x = 203,961.60 × 132,345.60
  4. Step 4: Simplify right side
    136,233.60x = 26,993,420,328.96
  5. Step 5: Solve for x
    x = 26,993,420,328.96/136,233.60
  6. Step 6: Final answer
    x = 198,140.70

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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.