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Finding the Fourth Proportional to 79,878.12, 110,231.19 and 44,069.64

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Solution

The fourth proportional to 79,878.12, 110,231.19 and 44,069.64 is: 60,815.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,878.12 : 110,231.19 = 44,069.64 : x
  2. Step 2: Convert to fraction form
    79,878.12/110,231.19 = 44,069.64/x
  3. Step 3: Cross multiply
    79,878.12x = 110,231.19 × 44,069.64
  4. Step 4: Simplify right side
    79,878.12x = 4,857,848,860.07
  5. Step 5: Solve for x
    x = 4,857,848,860.07/79,878.12
  6. Step 6: Final answer
    x = 60,815.76

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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.