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Finding the Fourth Proportional to 192,993.03, 266,329.62 and 108,109.89

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Solution

The fourth proportional to 192,993.03, 266,329.62 and 108,109.89 is: 149,191.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,993.03 : 266,329.62 = 108,109.89 : x
  2. Step 2: Convert to fraction form
    192,993.03/266,329.62 = 108,109.89/x
  3. Step 3: Cross multiply
    192,993.03x = 266,329.62 × 108,109.89
  4. Step 4: Simplify right side
    192,993.03x = 28,792,865,921.94
  5. Step 5: Solve for x
    x = 28,792,865,921.94/192,993.03
  6. Step 6: Final answer
    x = 149,191.22

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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.