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Finding the Fourth Proportional to 73,561.56, 110,397.60 and 53,890.80

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Solution

The fourth proportional to 73,561.56, 110,397.60 and 53,890.80 is: 80,876.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,561.56 : 110,397.60 = 53,890.80 : x
  2. Step 2: Convert to fraction form
    73,561.56/110,397.60 = 53,890.80/x
  3. Step 3: Cross multiply
    73,561.56x = 110,397.60 × 53,890.80
  4. Step 4: Simplify right side
    73,561.56x = 5,949,414,982.08
  5. Step 5: Solve for x
    x = 5,949,414,982.08/73,561.56
  6. Step 6: Final answer
    x = 80,876.68

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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.