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Finding the Fourth Proportional to 54,443.79, 81,499.83 and 43,814.97

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Solution

The fourth proportional to 54,443.79, 81,499.83 and 43,814.97 is: 65,588.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,443.79 : 81,499.83 = 43,814.97 : x
  2. Step 2: Convert to fraction form
    54,443.79/81,499.83 = 43,814.97/x
  3. Step 3: Cross multiply
    54,443.79x = 81,499.83 × 43,814.97
  4. Step 4: Simplify right side
    54,443.79x = 3,570,912,606.46
  5. Step 5: Solve for x
    x = 3,570,912,606.46/54,443.79
  6. Step 6: Final answer
    x = 65,588.98

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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.