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Finding the Fourth Proportional to 156,892.82, 217,082.03 and 136,791.52

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Solution

The fourth proportional to 156,892.82, 217,082.03 and 136,791.52 is: 189,269.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,892.82 : 217,082.03 = 136,791.52 : x
  2. Step 2: Convert to fraction form
    156,892.82/217,082.03 = 136,791.52/x
  3. Step 3: Cross multiply
    156,892.82x = 217,082.03 × 136,791.52
  4. Step 4: Simplify right side
    156,892.82x = 29,694,979,621.72
  5. Step 5: Solve for x
    x = 29,694,979,621.72/156,892.82
  6. Step 6: Final answer
    x = 189,269.21

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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.