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Finding the Fourth Proportional to 79,800.34, 110,125.23 and 43,991.64

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Solution

The fourth proportional to 79,800.34, 110,125.23 and 43,991.64 is: 60,708.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,800.34 : 110,125.23 = 43,991.64 : x
  2. Step 2: Convert to fraction form
    79,800.34/110,125.23 = 43,991.64/x
  3. Step 3: Cross multiply
    79,800.34x = 110,125.23 × 43,991.64
  4. Step 4: Simplify right side
    79,800.34x = 4,844,589,473.08
  5. Step 5: Solve for x
    x = 4,844,589,473.08/79,800.34
  6. Step 6: Final answer
    x = 60,708.88

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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.