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Finding the Fourth Proportional to 269,722.80, 404,638.20 and 80,182.80

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Solution

The fourth proportional to 269,722.80, 404,638.20 and 80,182.80 is: 120,290.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,722.80 : 404,638.20 = 80,182.80 : x
  2. Step 2: Convert to fraction form
    269,722.80/404,638.20 = 80,182.80/x
  3. Step 3: Cross multiply
    269,722.80x = 404,638.20 × 80,182.80
  4. Step 4: Simplify right side
    269,722.80x = 32,445,023,862.96
  5. Step 5: Solve for x
    x = 32,445,023,862.96/269,722.80
  6. Step 6: Final answer
    x = 120,290.25

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