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Finding the Fourth Proportional to 135,687.81, 203,199.54 and 95,608.29

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Solution

The fourth proportional to 135,687.81, 203,199.54 and 95,608.29 is: 143,178.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,687.81 : 203,199.54 = 95,608.29 : x
  2. Step 2: Convert to fraction form
    135,687.81/203,199.54 = 95,608.29/x
  3. Step 3: Cross multiply
    135,687.81x = 203,199.54 × 95,608.29
  4. Step 4: Simplify right side
    135,687.81x = 19,427,560,548.19
  5. Step 5: Solve for x
    x = 19,427,560,548.19/135,687.81
  6. Step 6: Final answer
    x = 143,178.38

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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.