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Finding the Fourth Proportional to 60,558.25, 90,449.78 and 54,850.68

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Solution

The fourth proportional to 60,558.25, 90,449.78 and 54,850.68 is: 81,924.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,558.25 : 90,449.78 = 54,850.68 : x
  2. Step 2: Convert to fraction form
    60,558.25/90,449.78 = 54,850.68/x
  3. Step 3: Cross multiply
    60,558.25x = 90,449.78 × 54,850.68
  4. Step 4: Simplify right side
    60,558.25x = 4,961,231,938.85
  5. Step 5: Solve for x
    x = 4,961,231,938.85/60,558.25
  6. Step 6: Final answer
    x = 81,924.96

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.