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Finding the Fourth Proportional to 89,652.82, 123,721.82 and 49,370.33

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Solution

The fourth proportional to 89,652.82, 123,721.82 and 49,370.33 is: 68,131.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,652.82 : 123,721.82 = 49,370.33 : x
  2. Step 2: Convert to fraction form
    89,652.82/123,721.82 = 49,370.33/x
  3. Step 3: Cross multiply
    89,652.82x = 123,721.82 × 49,370.33
  4. Step 4: Simplify right side
    89,652.82x = 6,108,187,081.60
  5. Step 5: Solve for x
    x = 6,108,187,081.60/89,652.82
  6. Step 6: Final answer
    x = 68,131.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.