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Finding the Fourth Proportional to 267,859.20, 401,788.80 and 225,868.80

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Solution

The fourth proportional to 267,859.20, 401,788.80 and 225,868.80 is: 338,803.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,859.20 : 401,788.80 = 225,868.80 : x
  2. Step 2: Convert to fraction form
    267,859.20/401,788.80 = 225,868.80/x
  3. Step 3: Cross multiply
    267,859.20x = 401,788.80 × 225,868.80
  4. Step 4: Simplify right side
    267,859.20x = 90,751,554,109.44
  5. Step 5: Solve for x
    x = 90,751,554,109.44/267,859.20
  6. Step 6: Final answer
    x = 338,803.20

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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.