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Finding the Fourth Proportional to 203,251.16, 304,753.61 and 90,910.44

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Solution

The fourth proportional to 203,251.16, 304,753.61 and 90,910.44 is: 136,310.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,251.16 : 304,753.61 = 90,910.44 : x
  2. Step 2: Convert to fraction form
    203,251.16/304,753.61 = 90,910.44/x
  3. Step 3: Cross multiply
    203,251.16x = 304,753.61 × 90,910.44
  4. Step 4: Simplify right side
    203,251.16x = 27,705,285,003.96
  5. Step 5: Solve for x
    x = 27,705,285,003.96/203,251.16
  6. Step 6: Final answer
    x = 136,310.59

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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.