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Finding the Fourth Proportional to 79,768.54, 110,081.32 and 43,959.83

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Solution

The fourth proportional to 79,768.54, 110,081.32 and 43,959.83 is: 60,664.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,768.54 : 110,081.32 = 43,959.83 : x
  2. Step 2: Convert to fraction form
    79,768.54/110,081.32 = 43,959.83/x
  3. Step 3: Cross multiply
    79,768.54x = 110,081.32 × 43,959.83
  4. Step 4: Simplify right side
    79,768.54x = 4,839,156,113.38
  5. Step 5: Solve for x
    x = 4,839,156,113.38/79,768.54
  6. Step 6: Final answer
    x = 60,664.97

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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.