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Finding the Fourth Proportional to 135,686.31, 203,197.31 and 95,606.79

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Solution

The fourth proportional to 135,686.31, 203,197.31 and 95,606.79 is: 143,176.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,686.31 : 203,197.31 = 95,606.79 : x
  2. Step 2: Convert to fraction form
    135,686.31/203,197.31 = 95,606.79/x
  3. Step 3: Cross multiply
    135,686.31x = 203,197.31 × 95,606.79
  4. Step 4: Simplify right side
    135,686.31x = 19,427,042,067.70
  5. Step 5: Solve for x
    x = 19,427,042,067.70/135,686.31
  6. Step 6: Final answer
    x = 143,176.14

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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.