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Finding the Fourth Proportional to 68,963.80, 103,496.90 and 27,440.60

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Solution

The fourth proportional to 68,963.80, 103,496.90 and 27,440.60 is: 41,181.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,963.80 : 103,496.90 = 27,440.60 : x
  2. Step 2: Convert to fraction form
    68,963.80/103,496.90 = 27,440.60/x
  3. Step 3: Cross multiply
    68,963.80x = 103,496.90 × 27,440.60
  4. Step 4: Simplify right side
    68,963.80x = 2,840,017,034.14
  5. Step 5: Solve for x
    x = 2,840,017,034.14/68,963.80
  6. Step 6: Final answer
    x = 41,181.27

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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.