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Finding the Fourth Proportional to 68,893.92, 103,363.88 and 26,775.35

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Solution

The fourth proportional to 68,893.92, 103,363.88 and 26,775.35 is: 40,171.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,893.92 : 103,363.88 = 26,775.35 : x
  2. Step 2: Convert to fraction form
    68,893.92/103,363.88 = 26,775.35/x
  3. Step 3: Cross multiply
    68,893.92x = 103,363.88 × 26,775.35
  4. Step 4: Simplify right side
    68,893.92x = 2,767,603,413.66
  5. Step 5: Solve for x
    x = 2,767,603,413.66/68,893.92
  6. Step 6: Final answer
    x = 40,171.95

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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.