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Finding the Fourth Proportional to 251,142.54, 376,721.10 and 110,912.10

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Solution

The fourth proportional to 251,142.54, 376,721.10 and 110,912.10 is: 166,371.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,142.54 : 376,721.10 = 110,912.10 : x
  2. Step 2: Convert to fraction form
    251,142.54/376,721.10 = 110,912.10/x
  3. Step 3: Cross multiply
    251,142.54x = 376,721.10 × 110,912.10
  4. Step 4: Simplify right side
    251,142.54x = 41,782,928,315.31
  5. Step 5: Solve for x
    x = 41,782,928,315.31/251,142.54
  6. Step 6: Final answer
    x = 166,371.37

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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.