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Finding the Fourth Proportional to 172,937.25, 259,413.83 and 52,985.61

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Solution

The fourth proportional to 172,937.25, 259,413.83 and 52,985.61 is: 79,480.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,937.25 : 259,413.83 = 52,985.61 : x
  2. Step 2: Convert to fraction form
    172,937.25/259,413.83 = 52,985.61/x
  3. Step 3: Cross multiply
    172,937.25x = 259,413.83 × 52,985.61
  4. Step 4: Simplify right side
    172,937.25x = 13,745,200,024.99
  5. Step 5: Solve for x
    x = 13,745,200,024.99/172,937.25
  6. Step 6: Final answer
    x = 79,480.85

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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.