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Finding the Fourth Proportional to 89,858.99, 124,003.85 and 49,576.61

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Solution

The fourth proportional to 89,858.99, 124,003.85 and 49,576.61 is: 68,414.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,858.99 : 124,003.85 = 49,576.61 : x
  2. Step 2: Convert to fraction form
    89,858.99/124,003.85 = 49,576.61/x
  3. Step 3: Cross multiply
    89,858.99x = 124,003.85 × 49,576.61
  4. Step 4: Simplify right side
    89,858.99x = 6,147,690,509.95
  5. Step 5: Solve for x
    x = 6,147,690,509.95/89,858.99
  6. Step 6: Final answer
    x = 68,414.86

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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.