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Finding the Fourth Proportional to 57,716.93, 86,714.11 and 54,530.59

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Solution

The fourth proportional to 57,716.93, 86,714.11 and 54,530.59 is: 81,926.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,716.93 : 86,714.11 = 54,530.59 : x
  2. Step 2: Convert to fraction form
    57,716.93/86,714.11 = 54,530.59/x
  3. Step 3: Cross multiply
    57,716.93x = 86,714.11 × 54,530.59
  4. Step 4: Simplify right side
    57,716.93x = 4,728,571,579.62
  5. Step 5: Solve for x
    x = 4,728,571,579.62/57,716.93
  6. Step 6: Final answer
    x = 81,926.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.