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Finding the Fourth Proportional to 68,892.00, 103,311.77 and 40,819.97

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Solution

The fourth proportional to 68,892.00, 103,311.77 and 40,819.97 is: 61,214.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,892.00 : 103,311.77 = 40,819.97 : x
  2. Step 2: Convert to fraction form
    68,892.00/103,311.77 = 40,819.97/x
  3. Step 3: Cross multiply
    68,892.00x = 103,311.77 × 40,819.97
  4. Step 4: Simplify right side
    68,892.00x = 4,217,183,406.23
  5. Step 5: Solve for x
    x = 4,217,183,406.23/68,892.00
  6. Step 6: Final answer
    x = 61,214.42

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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.