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Finding the Fourth Proportional to 207,600.40, 311,546.40 and 132,902.20

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Solution

The fourth proportional to 207,600.40, 311,546.40 and 132,902.20 is: 199,446.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,600.40 : 311,546.40 = 132,902.20 : x
  2. Step 2: Convert to fraction form
    207,600.40/311,546.40 = 132,902.20/x
  3. Step 3: Cross multiply
    207,600.40x = 311,546.40 × 132,902.20
  4. Step 4: Simplify right side
    207,600.40x = 41,405,201,962.08
  5. Step 5: Solve for x
    x = 41,405,201,962.08/207,600.40
  6. Step 6: Final answer
    x = 199,446.64

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1.5x scale

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.