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Finding the Fourth Proportional to 220,603.26, 330,371.82 and 125,545.44

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Solution

The fourth proportional to 220,603.26, 330,371.82 and 125,545.44 is: 188,014.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,603.26 : 330,371.82 = 125,545.44 : x
  2. Step 2: Convert to fraction form
    220,603.26/330,371.82 = 125,545.44/x
  3. Step 3: Cross multiply
    220,603.26x = 330,371.82 × 125,545.44
  4. Step 4: Simplify right side
    220,603.26x = 41,476,675,505.50
  5. Step 5: Solve for x
    x = 41,476,675,505.50/220,603.26
  6. Step 6: Final answer
    x = 188,014.79

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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.