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Finding the Fourth Proportional to 207,550.44, 311,451.66 and 82,881

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Solution

The fourth proportional to 207,550.44, 311,451.66 and 82,881 is: 124,371.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,550.44 : 311,451.66 = 82,881 : x
  2. Step 2: Convert to fraction form
    207,550.44/311,451.66 = 82,881/x
  3. Step 3: Cross multiply
    207,550.44x = 311,451.66 × 82,881
  4. Step 4: Simplify right side
    207,550.44x = 25,813,425,032.46
  5. Step 5: Solve for x
    x = 25,813,425,032.46/207,550.44
  6. Step 6: Final answer
    x = 124,371.82

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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.