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Finding the Fourth Proportional to 172,958.67, 259,464.78 and 73,119.24

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Solution

The fourth proportional to 172,958.67, 259,464.78 and 73,119.24 is: 109,690.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,958.67 : 259,464.78 = 73,119.24 : x
  2. Step 2: Convert to fraction form
    172,958.67/259,464.78 = 73,119.24/x
  3. Step 3: Cross multiply
    172,958.67x = 259,464.78 × 73,119.24
  4. Step 4: Simplify right side
    172,958.67x = 18,971,867,520.37
  5. Step 5: Solve for x
    x = 18,971,867,520.37/172,958.67
  6. Step 6: Final answer
    x = 109,690.18

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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.