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Finding the Fourth Proportional to 69,299.88, 103,861.44 and 33,769.68

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Solution

The fourth proportional to 69,299.88, 103,861.44 and 33,769.68 is: 50,611.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,299.88 : 103,861.44 = 33,769.68 : x
  2. Step 2: Convert to fraction form
    69,299.88/103,861.44 = 33,769.68/x
  3. Step 3: Cross multiply
    69,299.88x = 103,861.44 × 33,769.68
  4. Step 4: Simplify right side
    69,299.88x = 3,507,367,593.14
  5. Step 5: Solve for x
    x = 3,507,367,593.14/69,299.88
  6. Step 6: Final answer
    x = 50,611.45

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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.