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Finding the Fourth Proportional to 206,628.88, 309,865.56 and 162,772.24

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Solution

The fourth proportional to 206,628.88, 309,865.56 and 162,772.24 is: 244,097.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,628.88 : 309,865.56 = 162,772.24 : x
  2. Step 2: Convert to fraction form
    206,628.88/309,865.56 = 162,772.24/x
  3. Step 3: Cross multiply
    206,628.88x = 309,865.56 × 162,772.24
  4. Step 4: Simplify right side
    206,628.88x = 50,437,511,300.05
  5. Step 5: Solve for x
    x = 50,437,511,300.05/206,628.88
  6. Step 6: Final answer
    x = 244,097.10

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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.