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Finding the Fourth Proportional to 79,324.86, 118,828.65 and 47,717.44

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Solution

The fourth proportional to 79,324.86, 118,828.65 and 47,717.44 is: 71,480.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,324.86 : 118,828.65 = 47,717.44 : x
  2. Step 2: Convert to fraction form
    79,324.86/118,828.65 = 47,717.44/x
  3. Step 3: Cross multiply
    79,324.86x = 118,828.65 × 47,717.44
  4. Step 4: Simplify right side
    79,324.86x = 5,670,198,976.66
  5. Step 5: Solve for x
    x = 5,670,198,976.66/79,324.86
  6. Step 6: Final answer
    x = 71,480.73

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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.