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Finding the Fourth Proportional to 104,469.80, 156,791.10 and 48,396.20

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Solution

The fourth proportional to 104,469.80, 156,791.10 and 48,396.20 is: 72,634.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,469.80 : 156,791.10 = 48,396.20 : x
  2. Step 2: Convert to fraction form
    104,469.80/156,791.10 = 48,396.20/x
  3. Step 3: Cross multiply
    104,469.80x = 156,791.10 × 48,396.20
  4. Step 4: Simplify right side
    104,469.80x = 7,588,093,433.82
  5. Step 5: Solve for x
    x = 7,588,093,433.82/104,469.80
  6. Step 6: Final answer
    x = 72,634.33

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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.