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Finding the Fourth Proportional to 274,476.39, 411,640.52 and 96,960.03

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Solution

The fourth proportional to 274,476.39, 411,640.52 and 96,960.03 is: 145,413.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,476.39 : 411,640.52 = 96,960.03 : x
  2. Step 2: Convert to fraction form
    274,476.39/411,640.52 = 96,960.03/x
  3. Step 3: Cross multiply
    274,476.39x = 411,640.52 × 96,960.03
  4. Step 4: Simplify right side
    274,476.39x = 39,912,676,683.62
  5. Step 5: Solve for x
    x = 39,912,676,683.62/274,476.39
  6. Step 6: Final answer
    x = 145,413.88

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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.