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Finding the Fourth Proportional to 73,446.75, 109,833.71 and 54,739.80

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Solution

The fourth proportional to 73,446.75, 109,833.71 and 54,739.80 is: 81,858.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,446.75 : 109,833.71 = 54,739.80 : x
  2. Step 2: Convert to fraction form
    73,446.75/109,833.71 = 54,739.80/x
  3. Step 3: Cross multiply
    73,446.75x = 109,833.71 × 54,739.80
  4. Step 4: Simplify right side
    73,446.75x = 6,012,275,044.96
  5. Step 5: Solve for x
    x = 6,012,275,044.96/73,446.75
  6. Step 6: Final answer
    x = 81,858.97

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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.