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Finding the Fourth Proportional to 73,532.49, 110,280.51 and 20,942.43

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Solution

The fourth proportional to 73,532.49, 110,280.51 and 20,942.43 is: 31,408.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,532.49 : 110,280.51 = 20,942.43 : x
  2. Step 2: Convert to fraction form
    73,532.49/110,280.51 = 20,942.43/x
  3. Step 3: Cross multiply
    73,532.49x = 110,280.51 × 20,942.43
  4. Step 4: Simplify right side
    73,532.49x = 2,309,541,861.04
  5. Step 5: Solve for x
    x = 2,309,541,861.04/73,532.49
  6. Step 6: Final answer
    x = 31,408.45

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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.