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Finding the Fourth Proportional to 79,716.81, 110,014.19 and 43,906.81

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Solution

The fourth proportional to 79,716.81, 110,014.19 and 43,906.81 is: 60,594.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,716.81 : 110,014.19 = 43,906.81 : x
  2. Step 2: Convert to fraction form
    79,716.81/110,014.19 = 43,906.81/x
  3. Step 3: Cross multiply
    79,716.81x = 110,014.19 × 43,906.81
  4. Step 4: Simplify right side
    79,716.81x = 4,830,372,137.63
  5. Step 5: Solve for x
    x = 4,830,372,137.63/79,716.81
  6. Step 6: Final answer
    x = 60,594.15

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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.