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Finding the Fourth Proportional to 68,851.50, 103,270.77 and 22,104.78

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Solution

The fourth proportional to 68,851.50, 103,270.77 and 22,104.78 is: 33,155.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,851.50 : 103,270.77 = 22,104.78 : x
  2. Step 2: Convert to fraction form
    68,851.50/103,270.77 = 22,104.78/x
  3. Step 3: Cross multiply
    68,851.50x = 103,270.77 × 22,104.78
  4. Step 4: Simplify right side
    68,851.50x = 2,282,777,651.28
  5. Step 5: Solve for x
    x = 2,282,777,651.28/68,851.50
  6. Step 6: Final answer
    x = 33,155.09

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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.