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Finding the Fourth Proportional to 267,086.40, 400,578.48 and 80,097.60

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Solution

The fourth proportional to 267,086.40, 400,578.48 and 80,097.60 is: 120,131.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,086.40 : 400,578.48 = 80,097.60 : x
  2. Step 2: Convert to fraction form
    267,086.40/400,578.48 = 80,097.60/x
  3. Step 3: Cross multiply
    267,086.40x = 400,578.48 × 80,097.60
  4. Step 4: Simplify right side
    267,086.40x = 32,085,374,859.65
  5. Step 5: Solve for x
    x = 32,085,374,859.65/267,086.40
  6. Step 6: Final answer
    x = 120,131.07

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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.