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Finding the Fourth Proportional to 73,173.72, 109,767.88 and 33,742.12

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Solution

The fourth proportional to 73,173.72, 109,767.88 and 33,742.12 is: 50,616.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,173.72 : 109,767.88 = 33,742.12 : x
  2. Step 2: Convert to fraction form
    73,173.72/109,767.88 = 33,742.12/x
  3. Step 3: Cross multiply
    73,173.72x = 109,767.88 × 33,742.12
  4. Step 4: Simplify right side
    73,173.72x = 3,703,800,979.11
  5. Step 5: Solve for x
    x = 3,703,800,979.11/73,173.72
  6. Step 6: Final answer
    x = 50,616.55

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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.