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Finding the Fourth Proportional to 89,792.64, 123,919.41 and 49,506.33

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Solution

The fourth proportional to 89,792.64, 123,919.41 and 49,506.33 is: 68,321.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,792.64 : 123,919.41 = 49,506.33 : x
  2. Step 2: Convert to fraction form
    89,792.64/123,919.41 = 49,506.33/x
  3. Step 3: Cross multiply
    89,792.64x = 123,919.41 × 49,506.33
  4. Step 4: Simplify right side
    89,792.64x = 6,134,795,204.87
  5. Step 5: Solve for x
    x = 6,134,795,204.87/89,792.64
  6. Step 6: Final answer
    x = 68,321.80

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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.