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Finding the Fourth Proportional to 100,247.73, 150,378.98 and 33,687.38

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Solution

The fourth proportional to 100,247.73, 150,378.98 and 33,687.38 is: 50,533.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,247.73 : 150,378.98 = 33,687.38 : x
  2. Step 2: Convert to fraction form
    100,247.73/150,378.98 = 33,687.38/x
  3. Step 3: Cross multiply
    100,247.73x = 150,378.98 × 33,687.38
  4. Step 4: Simplify right side
    100,247.73x = 5,065,872,922.94
  5. Step 5: Solve for x
    x = 5,065,872,922.94/100,247.73
  6. Step 6: Final answer
    x = 50,533.54

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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.