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Finding the Fourth Proportional to 135,605.68, 203,422 and 50,239.38

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Solution

The fourth proportional to 135,605.68, 203,422 and 50,239.38 is: 75,364.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,605.68 : 203,422 = 50,239.38 : x
  2. Step 2: Convert to fraction form
    135,605.68/203,422 = 50,239.38/x
  3. Step 3: Cross multiply
    135,605.68x = 203,422 × 50,239.38
  4. Step 4: Simplify right side
    135,605.68x = 10,219,795,158.36
  5. Step 5: Solve for x
    x = 10,219,795,158.36/135,605.68
  6. Step 6: Final answer
    x = 75,364.06

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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.