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Finding the Fourth Proportional to 68,842.85, 103,301.90 and 26,724.60

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Solution

The fourth proportional to 68,842.85, 103,301.90 and 26,724.60 is: 40,101.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,842.85 : 103,301.90 = 26,724.60 : x
  2. Step 2: Convert to fraction form
    68,842.85/103,301.90 = 26,724.60/x
  3. Step 3: Cross multiply
    68,842.85x = 103,301.90 × 26,724.60
  4. Step 4: Simplify right side
    68,842.85x = 2,760,701,823.12
  5. Step 5: Solve for x
    x = 2,760,701,823.12/68,842.85
  6. Step 6: Final answer
    x = 40,101.51

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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.