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Finding the Fourth Proportional to 101,793.91, 140,383.56 and 63,556.91

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Solution

The fourth proportional to 101,793.91, 140,383.56 and 63,556.91 is: 87,651.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,793.91 : 140,383.56 = 63,556.91 : x
  2. Step 2: Convert to fraction form
    101,793.91/140,383.56 = 63,556.91/x
  3. Step 3: Cross multiply
    101,793.91x = 140,383.56 × 63,556.91
  4. Step 4: Simplify right side
    101,793.91x = 8,922,345,288.40
  5. Step 5: Solve for x
    x = 8,922,345,288.40/101,793.91
  6. Step 6: Final answer
    x = 87,651.07

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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.