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Finding the Fourth Proportional to 204,438.88, 282,069 and 122,745.88

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Solution

The fourth proportional to 204,438.88, 282,069 and 122,745.88 is: 169,355.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,438.88 : 282,069 = 122,745.88 : x
  2. Step 2: Convert to fraction form
    204,438.88/282,069 = 122,745.88/x
  3. Step 3: Cross multiply
    204,438.88x = 282,069 × 122,745.88
  4. Step 4: Simplify right side
    204,438.88x = 34,622,807,625.72
  5. Step 5: Solve for x
    x = 34,622,807,625.72/204,438.88
  6. Step 6: Final answer
    x = 169,355.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.