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Finding the Fourth Proportional to 68,777.99, 103,176.17 and 27,215.27

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Solution

The fourth proportional to 68,777.99, 103,176.17 and 27,215.27 is: 40,826.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,777.99 : 103,176.17 = 27,215.27 : x
  2. Step 2: Convert to fraction form
    68,777.99/103,176.17 = 27,215.27/x
  3. Step 3: Cross multiply
    68,777.99x = 103,176.17 × 27,215.27
  4. Step 4: Simplify right side
    68,777.99x = 2,807,967,324.12
  5. Step 5: Solve for x
    x = 2,807,967,324.12/68,777.99
  6. Step 6: Final answer
    x = 40,826.54

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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.