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Finding the Fourth Proportional to 288,103.73, 397,605.17 and 159,067.08

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Solution

The fourth proportional to 288,103.73, 397,605.17 and 159,067.08 is: 219,524.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,103.73 : 397,605.17 = 159,067.08 : x
  2. Step 2: Convert to fraction form
    288,103.73/397,605.17 = 159,067.08/x
  3. Step 3: Cross multiply
    288,103.73x = 397,605.17 × 159,067.08
  4. Step 4: Simplify right side
    288,103.73x = 63,245,893,782.47
  5. Step 5: Solve for x
    x = 63,245,893,782.47/288,103.73
  6. Step 6: Final answer
    x = 219,524.73

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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.