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Finding the Fourth Proportional to 104,136.80, 156,080.03 and 47,899.44

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Solution

The fourth proportional to 104,136.80, 156,080.03 and 47,899.44 is: 71,791.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,136.80 : 156,080.03 = 47,899.44 : x
  2. Step 2: Convert to fraction form
    104,136.80/156,080.03 = 47,899.44/x
  3. Step 3: Cross multiply
    104,136.80x = 156,080.03 × 47,899.44
  4. Step 4: Simplify right side
    104,136.80x = 7,476,145,792.69
  5. Step 5: Solve for x
    x = 7,476,145,792.69/104,136.80
  6. Step 6: Final answer
    x = 71,791.59

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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.