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Finding the Fourth Proportional to 79,767.39, 110,078.49 and 43,468.77

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Solution

The fourth proportional to 79,767.39, 110,078.49 and 43,468.77 is: 59,986.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,767.39 : 110,078.49 = 43,468.77 : x
  2. Step 2: Convert to fraction form
    79,767.39/110,078.49 = 43,468.77/x
  3. Step 3: Cross multiply
    79,767.39x = 110,078.49 × 43,468.77
  4. Step 4: Simplify right side
    79,767.39x = 4,784,976,563.76
  5. Step 5: Solve for x
    x = 4,784,976,563.76/79,767.39
  6. Step 6: Final answer
    x = 59,986.63

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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.