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Finding the Fourth Proportional to 79,764.90, 110,080.41 and 43,954.86

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Solution

The fourth proportional to 79,764.90, 110,080.41 and 43,954.86 is: 60,660.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,764.90 : 110,080.41 = 43,954.86 : x
  2. Step 2: Convert to fraction form
    79,764.90/110,080.41 = 43,954.86/x
  3. Step 3: Cross multiply
    79,764.90x = 110,080.41 × 43,954.86
  4. Step 4: Simplify right side
    79,764.90x = 4,838,569,010.29
  5. Step 5: Solve for x
    x = 4,838,569,010.29/79,764.90
  6. Step 6: Final answer
    x = 60,660.38

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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.