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Finding the Fourth Proportional to 89,891.42, 124,044.81 and 49,608.97

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Solution

The fourth proportional to 89,891.42, 124,044.81 and 49,608.97 is: 68,457.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,891.42 : 124,044.81 = 49,608.97 : x
  2. Step 2: Convert to fraction form
    89,891.42/124,044.81 = 49,608.97/x
  3. Step 3: Cross multiply
    89,891.42x = 124,044.81 × 49,608.97
  4. Step 4: Simplify right side
    89,891.42x = 6,153,735,257.95
  5. Step 5: Solve for x
    x = 6,153,735,257.95/89,891.42
  6. Step 6: Final answer
    x = 68,457.43

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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.