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Finding the Fourth Proportional to 73,589.94, 110,392.81 and 31,474.40

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Solution

The fourth proportional to 73,589.94, 110,392.81 and 31,474.40 is: 47,214.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,589.94 : 110,392.81 = 31,474.40 : x
  2. Step 2: Convert to fraction form
    73,589.94/110,392.81 = 31,474.40/x
  3. Step 3: Cross multiply
    73,589.94x = 110,392.81 × 31,474.40
  4. Step 4: Simplify right side
    73,589.94x = 3,474,546,828.41
  5. Step 5: Solve for x
    x = 3,474,546,828.41/73,589.94
  6. Step 6: Final answer
    x = 47,214.97

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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.