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Finding the Fourth Proportional to 79,768.46, 110,079.96 and 43,958.51

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Solution

The fourth proportional to 79,768.46, 110,079.96 and 43,958.51 is: 60,662.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,768.46 : 110,079.96 = 43,958.51 : x
  2. Step 2: Convert to fraction form
    79,768.46/110,079.96 = 43,958.51/x
  3. Step 3: Cross multiply
    79,768.46x = 110,079.96 × 43,958.51
  4. Step 4: Simplify right side
    79,768.46x = 4,838,951,586.48
  5. Step 5: Solve for x
    x = 4,838,951,586.48/79,768.46
  6. Step 6: Final answer
    x = 60,662.47

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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.