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Finding the Fourth Proportional to 251,053.82, 376,562.49 and 82,572.20

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Solution

The fourth proportional to 251,053.82, 376,562.49 and 82,572.20 is: 123,852.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,053.82 : 376,562.49 = 82,572.20 : x
  2. Step 2: Convert to fraction form
    251,053.82/376,562.49 = 82,572.20/x
  3. Step 3: Cross multiply
    251,053.82x = 376,562.49 × 82,572.20
  4. Step 4: Simplify right side
    251,053.82x = 31,093,591,353.97
  5. Step 5: Solve for x
    x = 31,093,591,353.97/251,053.82
  6. Step 6: Final answer
    x = 123,852.30

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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.