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Finding the Fourth Proportional to 79,935.20, 110,310.77 and 43,636.67

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Solution

The fourth proportional to 79,935.20, 110,310.77 and 43,636.67 is: 60,218.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,935.20 : 110,310.77 = 43,636.67 : x
  2. Step 2: Convert to fraction form
    79,935.20/110,310.77 = 43,636.67/x
  3. Step 3: Cross multiply
    79,935.20x = 110,310.77 × 43,636.67
  4. Step 4: Simplify right side
    79,935.20x = 4,813,594,667.94
  5. Step 5: Solve for x
    x = 4,813,594,667.94/79,935.20
  6. Step 6: Final answer
    x = 60,218.71

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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.