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Finding the Fourth Proportional to 54,704.79, 81,969.69 and 49,455.99

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Solution

The fourth proportional to 54,704.79, 81,969.69 and 49,455.99 is: 74,104.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,704.79 : 81,969.69 = 49,455.99 : x
  2. Step 2: Convert to fraction form
    54,704.79/81,969.69 = 49,455.99/x
  3. Step 3: Cross multiply
    54,704.79x = 81,969.69 × 49,455.99
  4. Step 4: Simplify right side
    54,704.79x = 4,053,892,168.94
  5. Step 5: Solve for x
    x = 4,053,892,168.94/54,704.79
  6. Step 6: Final answer
    x = 74,104.88

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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.