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Finding the Fourth Proportional to 481,968.53, 665,138.99 and 267,108.61

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Solution

The fourth proportional to 481,968.53, 665,138.99 and 267,108.61 is: 368,622.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,968.53 : 665,138.99 = 267,108.61 : x
  2. Step 2: Convert to fraction form
    481,968.53/665,138.99 = 267,108.61/x
  3. Step 3: Cross multiply
    481,968.53x = 665,138.99 × 267,108.61
  4. Step 4: Simplify right side
    481,968.53x = 177,664,353,198.47
  5. Step 5: Solve for x
    x = 177,664,353,198.47/481,968.53
  6. Step 6: Final answer
    x = 368,622.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.