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Finding the Fourth Proportional to 86,578.92, 129,887.82 and 27,410.04

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Solution

The fourth proportional to 86,578.92, 129,887.82 and 27,410.04 is: 41,121.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,578.92 : 129,887.82 = 27,410.04 : x
  2. Step 2: Convert to fraction form
    86,578.92/129,887.82 = 27,410.04/x
  3. Step 3: Cross multiply
    86,578.92x = 129,887.82 × 27,410.04
  4. Step 4: Simplify right side
    86,578.92x = 3,560,230,341.71
  5. Step 5: Solve for x
    x = 3,560,230,341.71/86,578.92
  6. Step 6: Final answer
    x = 41,121.21

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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.