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Finding the Fourth Proportional to 89,993, 124,190.34 and 50,249

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Solution

The fourth proportional to 89,993, 124,190.34 and 50,249 is: 69,343.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,993 : 124,190.34 = 50,249 : x
  2. Step 2: Convert to fraction form
    89,993/124,190.34 = 50,249/x
  3. Step 3: Cross multiply
    89,993x = 124,190.34 × 50,249
  4. Step 4: Simplify right side
    89,993x = 6,240,440,394.66
  5. Step 5: Solve for x
    x = 6,240,440,394.66/89,993
  6. Step 6: Final answer
    x = 69,343.62

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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.