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Finding the Fourth Proportional to 86,162.22, 129,194.73 and 33,511.41

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Solution

The fourth proportional to 86,162.22, 129,194.73 and 33,511.41 is: 50,248.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,162.22 : 129,194.73 = 33,511.41 : x
  2. Step 2: Convert to fraction form
    86,162.22/129,194.73 = 33,511.41/x
  3. Step 3: Cross multiply
    86,162.22x = 129,194.73 × 33,511.41
  4. Step 4: Simplify right side
    86,162.22x = 4,329,497,566.87
  5. Step 5: Solve for x
    x = 4,329,497,566.87/86,162.22
  6. Step 6: Final answer
    x = 50,248.21

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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.