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Finding the Fourth Proportional to 72,769.64, 100,388.91 and 52,594.56

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Solution

The fourth proportional to 72,769.64, 100,388.91 and 52,594.56 is: 72,556.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,769.64 : 100,388.91 = 52,594.56 : x
  2. Step 2: Convert to fraction form
    72,769.64/100,388.91 = 52,594.56/x
  3. Step 3: Cross multiply
    72,769.64x = 100,388.91 × 52,594.56
  4. Step 4: Simplify right side
    72,769.64x = 5,279,910,550.33
  5. Step 5: Solve for x
    x = 5,279,910,550.33/72,769.64
  6. Step 6: Final answer
    x = 72,556.51

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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.