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Finding the Fourth Proportional to 79,778.28, 110,091.42 and 43,967.64

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Solution

The fourth proportional to 79,778.28, 110,091.42 and 43,967.64 is: 60,673.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,778.28 : 110,091.42 = 43,967.64 : x
  2. Step 2: Convert to fraction form
    79,778.28/110,091.42 = 43,967.64/x
  3. Step 3: Cross multiply
    79,778.28x = 110,091.42 × 43,967.64
  4. Step 4: Simplify right side
    79,778.28x = 4,840,459,921.65
  5. Step 5: Solve for x
    x = 4,840,459,921.65/79,778.28
  6. Step 6: Final answer
    x = 60,673.91

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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.