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Finding the Fourth Proportional to 89,937.88, 124,112.76 and 49,650.60

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Solution

The fourth proportional to 89,937.88, 124,112.76 and 49,650.60 is: 68,516.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,937.88 : 124,112.76 = 49,650.60 : x
  2. Step 2: Convert to fraction form
    89,937.88/124,112.76 = 49,650.60/x
  3. Step 3: Cross multiply
    89,937.88x = 124,112.76 × 49,650.60
  4. Step 4: Simplify right side
    89,937.88x = 6,162,273,001.66
  5. Step 5: Solve for x
    x = 6,162,273,001.66/89,937.88
  6. Step 6: Final answer
    x = 68,516.99

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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.