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Finding the Fourth Proportional to 88,843.50, 122,659.92 and 57,067.74

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Solution

The fourth proportional to 88,843.50, 122,659.92 and 57,067.74 is: 78,789.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,843.50 : 122,659.92 = 57,067.74 : x
  2. Step 2: Convert to fraction form
    88,843.50/122,659.92 = 57,067.74/x
  3. Step 3: Cross multiply
    88,843.50x = 122,659.92 × 57,067.74
  4. Step 4: Simplify right side
    88,843.50x = 6,999,924,422.98
  5. Step 5: Solve for x
    x = 6,999,924,422.98/88,843.50
  6. Step 6: Final answer
    x = 78,789.38

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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.