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Finding the Fourth Proportional to 192,626.56, 288,911.22 and 74,283.13

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Solution

The fourth proportional to 192,626.56, 288,911.22 and 74,283.13 is: 111,413.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,626.56 : 288,911.22 = 74,283.13 : x
  2. Step 2: Convert to fraction form
    192,626.56/288,911.22 = 74,283.13/x
  3. Step 3: Cross multiply
    192,626.56x = 288,911.22 × 74,283.13
  4. Step 4: Simplify right side
    192,626.56x = 21,461,229,713.72
  5. Step 5: Solve for x
    x = 21,461,229,713.72/192,626.56
  6. Step 6: Final answer
    x = 111,413.66

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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.