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Finding the Fourth Proportional to 61,940.45, 85,474.97 and 35,083.18

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Solution

The fourth proportional to 61,940.45, 85,474.97 and 35,083.18 is: 48,413.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,940.45 : 85,474.97 = 35,083.18 : x
  2. Step 2: Convert to fraction form
    61,940.45/85,474.97 = 35,083.18/x
  3. Step 3: Cross multiply
    61,940.45x = 85,474.97 × 35,083.18
  4. Step 4: Simplify right side
    61,940.45x = 2,998,733,757.75
  5. Step 5: Solve for x
    x = 2,998,733,757.75/61,940.45
  6. Step 6: Final answer
    x = 48,413.17

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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.