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Finding the Fourth Proportional to 79,682.28, 119,449.17 and 27,055.77

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Solution

The fourth proportional to 79,682.28, 119,449.17 and 27,055.77 is: 40,558.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,682.28 : 119,449.17 = 27,055.77 : x
  2. Step 2: Convert to fraction form
    79,682.28/119,449.17 = 27,055.77/x
  3. Step 3: Cross multiply
    79,682.28x = 119,449.17 × 27,055.77
  4. Step 4: Simplify right side
    79,682.28x = 3,231,789,270.21
  5. Step 5: Solve for x
    x = 3,231,789,270.21/79,682.28
  6. Step 6: Final answer
    x = 40,558.44

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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.