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Finding the Fourth Proportional to 199,399.39, 275,163.54 and 109,975.39

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Solution

The fourth proportional to 199,399.39, 275,163.54 and 109,975.39 is: 151,761.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,399.39 : 275,163.54 = 109,975.39 : x
  2. Step 2: Convert to fraction form
    199,399.39/275,163.54 = 109,975.39/x
  3. Step 3: Cross multiply
    199,399.39x = 275,163.54 × 109,975.39
  4. Step 4: Simplify right side
    199,399.39x = 30,261,217,625.28
  5. Step 5: Solve for x
    x = 30,261,217,625.28/199,399.39
  6. Step 6: Final answer
    x = 151,761.84

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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.