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Finding the Fourth Proportional to 206,144.92, 285,052.62 and 163,629.64

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Solution

The fourth proportional to 206,144.92, 285,052.62 and 163,629.64 is: 226,263.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,144.92 : 285,052.62 = 163,629.64 : x
  2. Step 2: Convert to fraction form
    206,144.92/285,052.62 = 163,629.64/x
  3. Step 3: Cross multiply
    206,144.92x = 285,052.62 × 163,629.64
  4. Step 4: Simplify right side
    206,144.92x = 46,643,057,591.66
  5. Step 5: Solve for x
    x = 46,643,057,591.66/206,144.92
  6. Step 6: Final answer
    x = 226,263.43

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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.