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Finding the Fourth Proportional to 79,681.28, 119,447.67 and 27,054.77

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Solution

The fourth proportional to 79,681.28, 119,447.67 and 27,054.77 is: 40,556.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,681.28 : 119,447.67 = 27,054.77 : x
  2. Step 2: Convert to fraction form
    79,681.28/119,447.67 = 27,054.77/x
  3. Step 3: Cross multiply
    79,681.28x = 119,447.67 × 27,054.77
  4. Step 4: Simplify right side
    79,681.28x = 3,231,629,238.89
  5. Step 5: Solve for x
    x = 3,231,629,238.89/79,681.28
  6. Step 6: Final answer
    x = 40,556.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.