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Finding the Fourth Proportional to 248,604.20, 372,906.30 and 136,629.80

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Solution

The fourth proportional to 248,604.20, 372,906.30 and 136,629.80 is: 204,944.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,604.20 : 372,906.30 = 136,629.80 : x
  2. Step 2: Convert to fraction form
    248,604.20/372,906.30 = 136,629.80/x
  3. Step 3: Cross multiply
    248,604.20x = 372,906.30 × 136,629.80
  4. Step 4: Simplify right side
    248,604.20x = 50,950,113,187.74
  5. Step 5: Solve for x
    x = 50,950,113,187.74/248,604.20
  6. Step 6: Final answer
    x = 204,944.70

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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.