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Finding the Fourth Proportional to 199,086.75, 274,739.73 and 109,662.75

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Solution

The fourth proportional to 199,086.75, 274,739.73 and 109,662.75 is: 151,334.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,086.75 : 274,739.73 = 109,662.75 : x
  2. Step 2: Convert to fraction form
    199,086.75/274,739.73 = 109,662.75/x
  3. Step 3: Cross multiply
    199,086.75x = 274,739.73 × 109,662.75
  4. Step 4: Simplify right side
    199,086.75x = 30,128,714,326.06
  5. Step 5: Solve for x
    x = 30,128,714,326.06/199,086.75
  6. Step 6: Final answer
    x = 151,334.60

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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.