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Finding the Fourth Proportional to 248,067.10, 372,100.65 and 192,079.90

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Solution

The fourth proportional to 248,067.10, 372,100.65 and 192,079.90 is: 288,119.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,067.10 : 372,100.65 = 192,079.90 : x
  2. Step 2: Convert to fraction form
    248,067.10/372,100.65 = 192,079.90/x
  3. Step 3: Cross multiply
    248,067.10x = 372,100.65 × 192,079.90
  4. Step 4: Simplify right side
    248,067.10x = 71,473,055,641.94
  5. Step 5: Solve for x
    x = 71,473,055,641.94/248,067.10
  6. Step 6: Final answer
    x = 288,119.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.