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Finding the Fourth Proportional to 267,578.37, 400,580.22 and 178,611.21

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Solution

The fourth proportional to 267,578.37, 400,580.22 and 178,611.21 is: 267,391.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,578.37 : 400,580.22 = 178,611.21 : x
  2. Step 2: Convert to fraction form
    267,578.37/400,580.22 = 178,611.21/x
  3. Step 3: Cross multiply
    267,578.37x = 400,580.22 × 178,611.21
  4. Step 4: Simplify right side
    267,578.37x = 71,548,117,796.27
  5. Step 5: Solve for x
    x = 71,548,117,796.27/267,578.37
  6. Step 6: Final answer
    x = 267,391.26

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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.