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Finding the Fourth Proportional to 79,791.36, 110,110.62 and 43,493.16

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Solution

The fourth proportional to 79,791.36, 110,110.62 and 43,493.16 is: 60,019.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,791.36 : 110,110.62 = 43,493.16 : x
  2. Step 2: Convert to fraction form
    79,791.36/110,110.62 = 43,493.16/x
  3. Step 3: Cross multiply
    79,791.36x = 110,110.62 × 43,493.16
  4. Step 4: Simplify right side
    79,791.36x = 4,789,058,813.36
  5. Step 5: Solve for x
    x = 4,789,058,813.36/79,791.36
  6. Step 6: Final answer
    x = 60,019.77

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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.