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Finding the Fourth Proportional to 100,357.05, 150,535.58 and 33,791.61

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Solution

The fourth proportional to 100,357.05, 150,535.58 and 33,791.61 is: 50,687.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,357.05 : 150,535.58 = 33,791.61 : x
  2. Step 2: Convert to fraction form
    100,357.05/150,535.58 = 33,791.61/x
  3. Step 3: Cross multiply
    100,357.05x = 150,535.58 × 33,791.61
  4. Step 4: Simplify right side
    100,357.05x = 5,086,839,694.96
  5. Step 5: Solve for x
    x = 5,086,839,694.96/100,357.05
  6. Step 6: Final answer
    x = 50,687.42

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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.