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Finding the Fourth Proportional to 79,768.16, 110,080.80 and 43,959.46

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Solution

The fourth proportional to 79,768.16, 110,080.80 and 43,959.46 is: 60,664.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,768.16 : 110,080.80 = 43,959.46 : x
  2. Step 2: Convert to fraction form
    79,768.16/110,080.80 = 43,959.46/x
  3. Step 3: Cross multiply
    79,768.16x = 110,080.80 × 43,959.46
  4. Step 4: Simplify right side
    79,768.16x = 4,839,092,524.37
  5. Step 5: Solve for x
    x = 4,839,092,524.37/79,768.16
  6. Step 6: Final answer
    x = 60,664.46

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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.