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Finding the Fourth Proportional to 250,636.44, 376,012.99 and 82,146.32

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Solution

The fourth proportional to 250,636.44, 376,012.99 and 82,146.32 is: 123,238.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,636.44 : 376,012.99 = 82,146.32 : x
  2. Step 2: Convert to fraction form
    250,636.44/376,012.99 = 82,146.32/x
  3. Step 3: Cross multiply
    250,636.44x = 376,012.99 × 82,146.32
  4. Step 4: Simplify right side
    250,636.44x = 30,888,082,571.29
  5. Step 5: Solve for x
    x = 30,888,082,571.29/250,636.44
  6. Step 6: Final answer
    x = 123,238.59

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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.