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Finding the Fourth Proportional to 267,078.50, 400,041.81 and 251,375.84

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Solution

The fourth proportional to 267,078.50, 400,041.81 and 251,375.84 is: 376,521.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,078.50 : 400,041.81 = 251,375.84 : x
  2. Step 2: Convert to fraction form
    267,078.50/400,041.81 = 251,375.84/x
  3. Step 3: Cross multiply
    267,078.50x = 400,041.81 × 251,375.84
  4. Step 4: Simplify right side
    267,078.50x = 100,560,846,023.87
  5. Step 5: Solve for x
    x = 100,560,846,023.87/267,078.50
  6. Step 6: Final answer
    x = 376,521.68

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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.