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Finding the Fourth Proportional to 71,893.78, 99,213.82 and 41,697

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Solution

The fourth proportional to 71,893.78, 99,213.82 and 41,697 is: 57,542.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,893.78 : 99,213.82 = 41,697 : x
  2. Step 2: Convert to fraction form
    71,893.78/99,213.82 = 41,697/x
  3. Step 3: Cross multiply
    71,893.78x = 99,213.82 × 41,697
  4. Step 4: Simplify right side
    71,893.78x = 4,136,918,652.54
  5. Step 5: Solve for x
    x = 4,136,918,652.54/71,893.78
  6. Step 6: Final answer
    x = 57,542.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.