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Finding the Fourth Proportional to 79,767.38, 110,077.57 and 43,469.15

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Solution

The fourth proportional to 79,767.38, 110,077.57 and 43,469.15 is: 59,986.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,767.38 : 110,077.57 = 43,469.15 : x
  2. Step 2: Convert to fraction form
    79,767.38/110,077.57 = 43,469.15/x
  3. Step 3: Cross multiply
    79,767.38x = 110,077.57 × 43,469.15
  4. Step 4: Simplify right side
    79,767.38x = 4,784,978,032.12
  5. Step 5: Solve for x
    x = 4,784,978,032.12/79,767.38
  6. Step 6: Final answer
    x = 59,986.65

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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.