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Finding the Fourth Proportional to 79,767.75, 110,078.09 and 43,469.52

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Solution

The fourth proportional to 79,767.75, 110,078.09 and 43,469.52 is: 59,987.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,767.75 : 110,078.09 = 43,469.52 : x
  2. Step 2: Convert to fraction form
    79,767.75/110,078.09 = 43,469.52/x
  3. Step 3: Cross multiply
    79,767.75x = 110,078.09 × 43,469.52
  4. Step 4: Simplify right side
    79,767.75x = 4,785,041,930.26
  5. Step 5: Solve for x
    x = 4,785,041,930.26/79,767.75
  6. Step 6: Final answer
    x = 59,987.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.