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Finding the Fourth Proportional to 89,706.93, 123,794.97 and 49,419.75

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Solution

The fourth proportional to 89,706.93, 123,794.97 and 49,419.75 is: 68,198.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,706.93 : 123,794.97 = 49,419.75 : x
  2. Step 2: Convert to fraction form
    89,706.93/123,794.97 = 49,419.75/x
  3. Step 3: Cross multiply
    89,706.93x = 123,794.97 × 49,419.75
  4. Step 4: Simplify right side
    89,706.93x = 6,117,916,747.56
  5. Step 5: Solve for x
    x = 6,117,916,747.56/89,706.93
  6. Step 6: Final answer
    x = 68,198.93

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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.