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Finding the Fourth Proportional to 86,713.95, 129,992.04 and 33,371.91

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Solution

The fourth proportional to 86,713.95, 129,992.04 and 33,371.91 is: 50,027.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,713.95 : 129,992.04 = 33,371.91 : x
  2. Step 2: Convert to fraction form
    86,713.95/129,992.04 = 33,371.91/x
  3. Step 3: Cross multiply
    86,713.95x = 129,992.04 × 33,371.91
  4. Step 4: Simplify right side
    86,713.95x = 4,338,082,659.60
  5. Step 5: Solve for x
    x = 4,338,082,659.60/86,713.95
  6. Step 6: Final answer
    x = 50,027.51

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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.