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Finding the Fourth Proportional to 250,809.56, 376,236.22 and 82,279.40

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Solution

The fourth proportional to 250,809.56, 376,236.22 and 82,279.40 is: 123,426.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,809.56 : 376,236.22 = 82,279.40 : x
  2. Step 2: Convert to fraction form
    250,809.56/376,236.22 = 82,279.40/x
  3. Step 3: Cross multiply
    250,809.56x = 376,236.22 × 82,279.40
  4. Step 4: Simplify right side
    250,809.56x = 30,956,490,439.87
  5. Step 5: Solve for x
    x = 30,956,490,439.87/250,809.56
  6. Step 6: Final answer
    x = 123,426.28

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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.