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Finding the Fourth Proportional to 306,644.80, 459,934.84 and 82,027.90

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Solution

The fourth proportional to 306,644.80, 459,934.84 and 82,027.90 is: 123,033.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,644.80 : 459,934.84 = 82,027.90 : x
  2. Step 2: Convert to fraction form
    306,644.80/459,934.84 = 82,027.90/x
  3. Step 3: Cross multiply
    306,644.80x = 459,934.84 × 82,027.90
  4. Step 4: Simplify right side
    306,644.80x = 37,727,489,062.04
  5. Step 5: Solve for x
    x = 37,727,489,062.04/306,644.80
  6. Step 6: Final answer
    x = 123,033.19

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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.