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Finding the Fourth Proportional to 198,991.00, 274,612.50 and 108,351.92

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Solution

The fourth proportional to 198,991.00, 274,612.50 and 108,351.92 is: 149,528.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,991.00 : 274,612.50 = 108,351.92 : x
  2. Step 2: Convert to fraction form
    198,991.00/274,612.50 = 108,351.92/x
  3. Step 3: Cross multiply
    198,991.00x = 274,612.50 × 108,351.92
  4. Step 4: Simplify right side
    198,991.00x = 29,754,792,317.53
  5. Step 5: Solve for x
    x = 29,754,792,317.53/198,991.00
  6. Step 6: Final answer
    x = 149,528.33

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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.