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Finding the Fourth Proportional to 122,930.01, 169,660.31 and 69,236.73

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Solution

The fourth proportional to 122,930.01, 169,660.31 and 69,236.73 is: 95,556.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,930.01 : 169,660.31 = 69,236.73 : x
  2. Step 2: Convert to fraction form
    122,930.01/169,660.31 = 69,236.73/x
  3. Step 3: Cross multiply
    122,930.01x = 169,660.31 × 69,236.73
  4. Step 4: Simplify right side
    122,930.01x = 11,746,724,729.00
  5. Step 5: Solve for x
    x = 11,746,724,729.00/122,930.01
  6. Step 6: Final answer
    x = 95,556.20

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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.