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Finding the Fourth Proportional to 86,352.53, 129,519.77 and 23,179.41

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Solution

The fourth proportional to 86,352.53, 129,519.77 and 23,179.41 is: 34,766.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,352.53 : 129,519.77 = 23,179.41 : x
  2. Step 2: Convert to fraction form
    86,352.53/129,519.77 = 23,179.41/x
  3. Step 3: Cross multiply
    86,352.53x = 129,519.77 × 23,179.41
  4. Step 4: Simplify right side
    86,352.53x = 3,002,191,736.04
  5. Step 5: Solve for x
    x = 3,002,191,736.04/86,352.53
  6. Step 6: Final answer
    x = 34,766.69

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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.