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Finding the Fourth Proportional to 73,979.40, 110,896.20 and 36,508.80

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Solution

The fourth proportional to 73,979.40, 110,896.20 and 36,508.80 is: 54,727.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,979.40 : 110,896.20 = 36,508.80 : x
  2. Step 2: Convert to fraction form
    73,979.40/110,896.20 = 36,508.80/x
  3. Step 3: Cross multiply
    73,979.40x = 110,896.20 × 36,508.80
  4. Step 4: Simplify right side
    73,979.40x = 4,048,687,186.56
  5. Step 5: Solve for x
    x = 4,048,687,186.56/73,979.40
  6. Step 6: Final answer
    x = 54,727.22

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1.5x scale

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.