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Finding the Fourth Proportional to 199,387.44, 275,013.36 and 192,797.28

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Solution

The fourth proportional to 199,387.44, 275,013.36 and 192,797.28 is: 265,923.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,387.44 : 275,013.36 = 192,797.28 : x
  2. Step 2: Convert to fraction form
    199,387.44/275,013.36 = 192,797.28/x
  3. Step 3: Cross multiply
    199,387.44x = 275,013.36 × 192,797.28
  4. Step 4: Simplify right side
    199,387.44x = 53,021,827,771.66
  5. Step 5: Solve for x
    x = 53,021,827,771.66/199,387.44
  6. Step 6: Final answer
    x = 265,923.61

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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.