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Finding the Fourth Proportional to 54,229.78, 81,238.74 and 37,359.81

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Solution

The fourth proportional to 54,229.78, 81,238.74 and 37,359.81 is: 55,966.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,229.78 : 81,238.74 = 37,359.81 : x
  2. Step 2: Convert to fraction form
    54,229.78/81,238.74 = 37,359.81/x
  3. Step 3: Cross multiply
    54,229.78x = 81,238.74 × 37,359.81
  4. Step 4: Simplify right side
    54,229.78x = 3,035,063,891.04
  5. Step 5: Solve for x
    x = 3,035,063,891.04/54,229.78
  6. Step 6: Final answer
    x = 55,966.74

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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.