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Finding the Fourth Proportional to 117,608.99, 176,413.13 and 47,487.47

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Solution

The fourth proportional to 117,608.99, 176,413.13 and 47,487.47 is: 71,231.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,608.99 : 176,413.13 = 47,487.47 : x
  2. Step 2: Convert to fraction form
    117,608.99/176,413.13 = 47,487.47/x
  3. Step 3: Cross multiply
    117,608.99x = 176,413.13 × 47,487.47
  4. Step 4: Simplify right side
    117,608.99x = 8,377,412,981.04
  5. Step 5: Solve for x
    x = 8,377,412,981.04/117,608.99
  6. Step 6: Final answer
    x = 71,231.06

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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.