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Finding the Fourth Proportional to 71,321.85, 98,413.11 and 41,108.58

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Solution

The fourth proportional to 71,321.85, 98,413.11 and 41,108.58 is: 56,723.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,321.85 : 98,413.11 = 41,108.58 : x
  2. Step 2: Convert to fraction form
    71,321.85/98,413.11 = 41,108.58/x
  3. Step 3: Cross multiply
    71,321.85x = 98,413.11 × 41,108.58
  4. Step 4: Simplify right side
    71,321.85x = 4,045,623,205.48
  5. Step 5: Solve for x
    x = 4,045,623,205.48/71,321.85
  6. Step 6: Final answer
    x = 56,723.48

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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.