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Finding the Fourth Proportional to 79,774.56, 110,089.64 and 43,965.88

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Solution

The fourth proportional to 79,774.56, 110,089.64 and 43,965.88 is: 60,673.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,774.56 : 110,089.64 = 43,965.88 : x
  2. Step 2: Convert to fraction form
    79,774.56/110,089.64 = 43,965.88/x
  3. Step 3: Cross multiply
    79,774.56x = 110,089.64 × 43,965.88
  4. Step 4: Simplify right side
    79,774.56x = 4,840,187,736.17
  5. Step 5: Solve for x
    x = 4,840,187,736.17/79,774.56
  6. Step 6: Final answer
    x = 60,673.32

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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.