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Finding the Fourth Proportional to 77,611.37, 116,413.81 and 22,207.37

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Solution

The fourth proportional to 77,611.37, 116,413.81 and 22,207.37 is: 33,310.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,611.37 : 116,413.81 = 22,207.37 : x
  2. Step 2: Convert to fraction form
    77,611.37/116,413.81 = 22,207.37/x
  3. Step 3: Cross multiply
    77,611.37x = 116,413.81 × 22,207.37
  4. Step 4: Simplify right side
    77,611.37x = 2,585,243,914.19
  5. Step 5: Solve for x
    x = 2,585,243,914.19/77,611.37
  6. Step 6: Final answer
    x = 33,310.12

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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.