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Finding the Fourth Proportional to 54,463.94, 81,765.87 and 41,991.89

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Solution

The fourth proportional to 54,463.94, 81,765.87 and 41,991.89 is: 63,041.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,463.94 : 81,765.87 = 41,991.89 : x
  2. Step 2: Convert to fraction form
    54,463.94/81,765.87 = 41,991.89/x
  3. Step 3: Cross multiply
    54,463.94x = 81,765.87 × 41,991.89
  4. Step 4: Simplify right side
    54,463.94x = 3,433,503,088.70
  5. Step 5: Solve for x
    x = 3,433,503,088.70/54,463.94
  6. Step 6: Final answer
    x = 63,041.77

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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.