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Finding the Fourth Proportional to 199,185.54, 274,872.54 and 108,542.16

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Solution

The fourth proportional to 199,185.54, 274,872.54 and 108,542.16 is: 149,786.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,185.54 : 274,872.54 = 108,542.16 : x
  2. Step 2: Convert to fraction form
    199,185.54/274,872.54 = 108,542.16/x
  3. Step 3: Cross multiply
    199,185.54x = 274,872.54 × 108,542.16
  4. Step 4: Simplify right side
    199,185.54x = 29,835,259,216.29
  5. Step 5: Solve for x
    x = 29,835,259,216.29/199,185.54
  6. Step 6: Final answer
    x = 149,786.27

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1.5x scale

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.