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Finding the Fourth Proportional to 178,338.88, 246,067.23 and 120,986.02

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Solution

The fourth proportional to 178,338.88, 246,067.23 and 120,986.02 is: 166,933.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,338.88 : 246,067.23 = 120,986.02 : x
  2. Step 2: Convert to fraction form
    178,338.88/246,067.23 = 120,986.02/x
  3. Step 3: Cross multiply
    178,338.88x = 246,067.23 × 120,986.02
  4. Step 4: Simplify right side
    178,338.88x = 29,770,694,810.12
  5. Step 5: Solve for x
    x = 29,770,694,810.12/178,338.88
  6. Step 6: Final answer
    x = 166,933.28

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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.