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Finding the Fourth Proportional to 67,992.97, 101,954.26 and 30,520.77

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Solution

The fourth proportional to 67,992.97, 101,954.26 and 30,520.77 is: 45,765.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,992.97 : 101,954.26 = 30,520.77 : x
  2. Step 2: Convert to fraction form
    67,992.97/101,954.26 = 30,520.77/x
  3. Step 3: Cross multiply
    67,992.97x = 101,954.26 × 30,520.77
  4. Step 4: Simplify right side
    67,992.97x = 3,111,722,907.28
  5. Step 5: Solve for x
    x = 3,111,722,907.28/67,992.97
  6. Step 6: Final answer
    x = 45,765.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.