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Finding the Fourth Proportional to 202,619.91, 303,883.62 and 76,273.43

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Solution

The fourth proportional to 202,619.91, 303,883.62 and 76,273.43 is: 114,392.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,619.91 : 303,883.62 = 76,273.43 : x
  2. Step 2: Convert to fraction form
    202,619.91/303,883.62 = 76,273.43/x
  3. Step 3: Cross multiply
    202,619.91x = 303,883.62 × 76,273.43
  4. Step 4: Simplify right side
    202,619.91x = 23,178,244,498.80
  5. Step 5: Solve for x
    x = 23,178,244,498.80/202,619.91
  6. Step 6: Final answer
    x = 114,392.73

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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.