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Finding the Fourth Proportional to 206,893.56, 285,513.30 and 117,469.56

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Solution

The fourth proportional to 206,893.56, 285,513.30 and 117,469.56 is: 162,108.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,893.56 : 285,513.30 = 117,469.56 : x
  2. Step 2: Convert to fraction form
    206,893.56/285,513.30 = 117,469.56/x
  3. Step 3: Cross multiply
    206,893.56x = 285,513.30 × 117,469.56
  4. Step 4: Simplify right side
    206,893.56x = 33,539,121,725.15
  5. Step 5: Solve for x
    x = 33,539,121,725.15/206,893.56
  6. Step 6: Final answer
    x = 162,108.10

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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.