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Finding the Fourth Proportional to 199,067.80, 298,601.70 and 124,418.20

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Solution

The fourth proportional to 199,067.80, 298,601.70 and 124,418.20 is: 186,627.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,067.80 : 298,601.70 = 124,418.20 : x
  2. Step 2: Convert to fraction form
    199,067.80/298,601.70 = 124,418.20/x
  3. Step 3: Cross multiply
    199,067.80x = 298,601.70 × 124,418.20
  4. Step 4: Simplify right side
    199,067.80x = 37,151,486,030.94
  5. Step 5: Solve for x
    x = 37,151,486,030.94/199,067.80
  6. Step 6: Final answer
    x = 186,627.30

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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.