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Finding the Fourth Proportional to 86,556.33, 119,489.99 and 68,593.77

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Solution

The fourth proportional to 86,556.33, 119,489.99 and 68,593.77 is: 94,692.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,556.33 : 119,489.99 = 68,593.77 : x
  2. Step 2: Convert to fraction form
    86,556.33/119,489.99 = 68,593.77/x
  3. Step 3: Cross multiply
    86,556.33x = 119,489.99 × 68,593.77
  4. Step 4: Simplify right side
    86,556.33x = 8,196,268,548.39
  5. Step 5: Solve for x
    x = 8,196,268,548.39/86,556.33
  6. Step 6: Final answer
    x = 94,692.88

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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.