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Finding the Fourth Proportional to 77,290.52, 115,896.83 and 27,363.60

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Solution

The fourth proportional to 77,290.52, 115,896.83 and 27,363.60 is: 41,031.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,290.52 : 115,896.83 = 27,363.60 : x
  2. Step 2: Convert to fraction form
    77,290.52/115,896.83 = 27,363.60/x
  3. Step 3: Cross multiply
    77,290.52x = 115,896.83 × 27,363.60
  4. Step 4: Simplify right side
    77,290.52x = 3,171,354,360.57
  5. Step 5: Solve for x
    x = 3,171,354,360.57/77,290.52
  6. Step 6: Final answer
    x = 41,031.61

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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.