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Finding the Fourth Proportional to 111,091.26, 166,692.78 and 44,578.92

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Solution

The fourth proportional to 111,091.26, 166,692.78 and 44,578.92 is: 66,890.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,091.26 : 166,692.78 = 44,578.92 : x
  2. Step 2: Convert to fraction form
    111,091.26/166,692.78 = 44,578.92/x
  3. Step 3: Cross multiply
    111,091.26x = 166,692.78 × 44,578.92
  4. Step 4: Simplify right side
    111,091.26x = 7,430,984,104.20
  5. Step 5: Solve for x
    x = 7,430,984,104.20/111,091.26
  6. Step 6: Final answer
    x = 66,890.81

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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.