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Finding the Fourth Proportional to 79,716.52, 110,008.74 and 43,905.64

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Solution

The fourth proportional to 79,716.52, 110,008.74 and 43,905.64 is: 60,589.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,716.52 : 110,008.74 = 43,905.64 : x
  2. Step 2: Convert to fraction form
    79,716.52/110,008.74 = 43,905.64/x
  3. Step 3: Cross multiply
    79,716.52x = 110,008.74 × 43,905.64
  4. Step 4: Simplify right side
    79,716.52x = 4,830,004,135.29
  5. Step 5: Solve for x
    x = 4,830,004,135.29/79,716.52
  6. Step 6: Final answer
    x = 60,589.75

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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.