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Finding the Fourth Proportional to 171,950.52, 258,067.92 and 87,772.88

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Solution

The fourth proportional to 171,950.52, 258,067.92 and 87,772.88 is: 131,731.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,950.52 : 258,067.92 = 87,772.88 : x
  2. Step 2: Convert to fraction form
    171,950.52/258,067.92 = 87,772.88/x
  3. Step 3: Cross multiply
    171,950.52x = 258,067.92 × 87,772.88
  4. Step 4: Simplify right side
    171,950.52x = 22,651,364,574.01
  5. Step 5: Solve for x
    x = 22,651,364,574.01/171,950.52
  6. Step 6: Final answer
    x = 131,731.88

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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.