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Finding the Fourth Proportional to 79,793.66, 110,111.94 and 43,494.31

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Solution

The fourth proportional to 79,793.66, 110,111.94 and 43,494.31 is: 60,020.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,793.66 : 110,111.94 = 43,494.31 : x
  2. Step 2: Convert to fraction form
    79,793.66/110,111.94 = 43,494.31/x
  3. Step 3: Cross multiply
    79,793.66x = 110,111.94 × 43,494.31
  4. Step 4: Simplify right side
    79,793.66x = 4,789,242,990.70
  5. Step 5: Solve for x
    x = 4,789,242,990.70/79,793.66
  6. Step 6: Final answer
    x = 60,020.34

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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.