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Finding the Fourth Proportional to 206,687.75, 310,033.31 and 56,936.30

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Solution

The fourth proportional to 206,687.75, 310,033.31 and 56,936.30 is: 85,404.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,687.75 : 310,033.31 = 56,936.30 : x
  2. Step 2: Convert to fraction form
    206,687.75/310,033.31 = 56,936.30/x
  3. Step 3: Cross multiply
    206,687.75x = 310,033.31 × 56,936.30
  4. Step 4: Simplify right side
    206,687.75x = 17,652,149,548.15
  5. Step 5: Solve for x
    x = 17,652,149,548.15/206,687.75
  6. Step 6: Final answer
    x = 85,404.91

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1.5x scale

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.