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Finding the Fourth Proportional to 122,508.52, 169,046.40 and 68,793.37

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Solution

The fourth proportional to 122,508.52, 169,046.40 and 68,793.37 is: 94,926.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,508.52 : 169,046.40 = 68,793.37 : x
  2. Step 2: Convert to fraction form
    122,508.52/169,046.40 = 68,793.37/x
  3. Step 3: Cross multiply
    122,508.52x = 169,046.40 × 68,793.37
  4. Step 4: Simplify right side
    122,508.52x = 11,629,271,542.37
  5. Step 5: Solve for x
    x = 11,629,271,542.37/122,508.52
  6. Step 6: Final answer
    x = 94,926.23

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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.