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Finding the Fourth Proportional to 73,228.44, 109,767.24 and 28,837.20

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Solution

The fourth proportional to 73,228.44, 109,767.24 and 28,837.20 is: 43,226.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,228.44 : 109,767.24 = 28,837.20 : x
  2. Step 2: Convert to fraction form
    73,228.44/109,767.24 = 28,837.20/x
  3. Step 3: Cross multiply
    73,228.44x = 109,767.24 × 28,837.20
  4. Step 4: Simplify right side
    73,228.44x = 3,165,379,853.33
  5. Step 5: Solve for x
    x = 3,165,379,853.33/73,228.44
  6. Step 6: Final answer
    x = 43,226.10

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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.