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Finding the Fourth Proportional to 195,969.78, 270,433.08 and 111,086.64

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Solution

The fourth proportional to 195,969.78, 270,433.08 and 111,086.64 is: 153,296.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,969.78 : 270,433.08 = 111,086.64 : x
  2. Step 2: Convert to fraction form
    195,969.78/270,433.08 = 111,086.64/x
  3. Step 3: Cross multiply
    195,969.78x = 270,433.08 × 111,086.64
  4. Step 4: Simplify right side
    195,969.78x = 30,041,502,202.05
  5. Step 5: Solve for x
    x = 30,041,502,202.05/195,969.78
  6. Step 6: Final answer
    x = 153,296.61

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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.