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Finding the Fourth Proportional to 54,836.82, 81,773.71 and 54,337.86

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Solution

The fourth proportional to 54,836.82, 81,773.71 and 54,337.86 is: 81,029.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,836.82 : 81,773.71 = 54,337.86 : x
  2. Step 2: Convert to fraction form
    54,836.82/81,773.71 = 54,337.86/x
  3. Step 3: Cross multiply
    54,836.82x = 81,773.71 × 54,337.86
  4. Step 4: Simplify right side
    54,836.82x = 4,443,408,133.97
  5. Step 5: Solve for x
    x = 4,443,408,133.97/54,836.82
  6. Step 6: Final answer
    x = 81,029.65

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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.