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Finding the Fourth Proportional to 267,940.90, 369,757.52 and 145,433.28

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Solution

The fourth proportional to 267,940.90, 369,757.52 and 145,433.28 is: 200,697.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,940.90 : 369,757.52 = 145,433.28 : x
  2. Step 2: Convert to fraction form
    267,940.90/369,757.52 = 145,433.28/x
  3. Step 3: Cross multiply
    267,940.90x = 369,757.52 × 145,433.28
  4. Step 4: Simplify right side
    267,940.90x = 53,775,050,143.06
  5. Step 5: Solve for x
    x = 53,775,050,143.06/267,940.90
  6. Step 6: Final answer
    x = 200,697.43

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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.