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Finding the Fourth Proportional to 67,181.96, 100,710.72 and 29,722.16

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Solution

The fourth proportional to 67,181.96, 100,710.72 and 29,722.16 is: 44,555.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,181.96 : 100,710.72 = 29,722.16 : x
  2. Step 2: Convert to fraction form
    67,181.96/100,710.72 = 29,722.16/x
  3. Step 3: Cross multiply
    67,181.96x = 100,710.72 × 29,722.16
  4. Step 4: Simplify right side
    67,181.96x = 2,993,340,133.56
  5. Step 5: Solve for x
    x = 2,993,340,133.56/67,181.96
  6. Step 6: Final answer
    x = 44,555.71

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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.