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Finding the Fourth Proportional to 79,906.48, 119,933.34 and 40,491.52

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Solution

The fourth proportional to 79,906.48, 119,933.34 and 40,491.52 is: 60,774.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,906.48 : 119,933.34 = 40,491.52 : x
  2. Step 2: Convert to fraction form
    79,906.48/119,933.34 = 40,491.52/x
  3. Step 3: Cross multiply
    79,906.48x = 119,933.34 × 40,491.52
  4. Step 4: Simplify right side
    79,906.48x = 4,856,283,235.28
  5. Step 5: Solve for x
    x = 4,856,283,235.28/79,906.48
  6. Step 6: Final answer
    x = 60,774.59

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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.