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Finding the Fourth Proportional to 79,908.48, 119,936.34 and 40,493.52

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Solution

The fourth proportional to 79,908.48, 119,936.34 and 40,493.52 is: 60,777.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,908.48 : 119,936.34 = 40,493.52 : x
  2. Step 2: Convert to fraction form
    79,908.48/119,936.34 = 40,493.52/x
  3. Step 3: Cross multiply
    79,908.48x = 119,936.34 × 40,493.52
  4. Step 4: Simplify right side
    79,908.48x = 4,856,644,582.52
  5. Step 5: Solve for x
    x = 4,856,644,582.52/79,908.48
  6. Step 6: Final answer
    x = 60,777.59

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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.