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Finding the Fourth Proportional to 206,997.12, 285,654.60 and 117,573.12

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Solution

The fourth proportional to 206,997.12, 285,654.60 and 117,573.12 is: 162,250.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,997.12 : 285,654.60 = 117,573.12 : x
  2. Step 2: Convert to fraction form
    206,997.12/285,654.60 = 117,573.12/x
  3. Step 3: Cross multiply
    206,997.12x = 285,654.60 × 117,573.12
  4. Step 4: Simplify right side
    206,997.12x = 33,585,302,564.35
  5. Step 5: Solve for x
    x = 33,585,302,564.35/206,997.12
  6. Step 6: Final answer
    x = 162,250.10

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1.5x scale

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.