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Finding the Fourth Proportional to 267,255.20, 368,843.28 and 154,082

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Solution

The fourth proportional to 267,255.20, 368,843.28 and 154,082 is: 212,651.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,255.20 : 368,843.28 = 154,082 : x
  2. Step 2: Convert to fraction form
    267,255.20/368,843.28 = 154,082/x
  3. Step 3: Cross multiply
    267,255.20x = 368,843.28 × 154,082
  4. Step 4: Simplify right side
    267,255.20x = 56,832,110,268.96
  5. Step 5: Solve for x
    x = 56,832,110,268.96/267,255.20
  6. Step 6: Final answer
    x = 212,651.09

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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.