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Finding the Fourth Proportional to 202,873.60, 304,310.40 and 132,371.20

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Solution

The fourth proportional to 202,873.60, 304,310.40 and 132,371.20 is: 198,556.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,873.60 : 304,310.40 = 132,371.20 : x
  2. Step 2: Convert to fraction form
    202,873.60/304,310.40 = 132,371.20/x
  3. Step 3: Cross multiply
    202,873.60x = 304,310.40 × 132,371.20
  4. Step 4: Simplify right side
    202,873.60x = 40,281,932,820.48
  5. Step 5: Solve for x
    x = 40,281,932,820.48/202,873.60
  6. Step 6: Final answer
    x = 198,556.80

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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.