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Finding the Fourth Proportional to 372,112.60, 558,168.90 and 267,136.60

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Solution

The fourth proportional to 372,112.60, 558,168.90 and 267,136.60 is: 400,704.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,112.60 : 558,168.90 = 267,136.60 : x
  2. Step 2: Convert to fraction form
    372,112.60/558,168.90 = 267,136.60/x
  3. Step 3: Cross multiply
    372,112.60x = 558,168.90 × 267,136.60
  4. Step 4: Simplify right side
    372,112.60x = 149,107,342,171.74
  5. Step 5: Solve for x
    x = 149,107,342,171.74/372,112.60
  6. Step 6: Final answer
    x = 400,704.90

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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.