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Finding the Fourth Proportional to 54,363.96, 81,441.72 and 41,865.12

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Solution

The fourth proportional to 54,363.96, 81,441.72 and 41,865.12 is: 62,717.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,363.96 : 81,441.72 = 41,865.12 : x
  2. Step 2: Convert to fraction form
    54,363.96/81,441.72 = 41,865.12/x
  3. Step 3: Cross multiply
    54,363.96x = 81,441.72 × 41,865.12
  4. Step 4: Simplify right side
    54,363.96x = 3,409,567,380.81
  5. Step 5: Solve for x
    x = 3,409,567,380.81/54,363.96
  6. Step 6: Final answer
    x = 62,717.42

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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.