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Finding the Fourth Proportional to 254,149.56, 381,217.84 and 67,162.68

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Solution

The fourth proportional to 254,149.56, 381,217.84 and 67,162.68 is: 100,742.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,149.56 : 381,217.84 = 67,162.68 : x
  2. Step 2: Convert to fraction form
    254,149.56/381,217.84 = 67,162.68/x
  3. Step 3: Cross multiply
    254,149.56x = 381,217.84 × 67,162.68
  4. Step 4: Simplify right side
    254,149.56x = 25,603,611,798.21
  5. Step 5: Solve for x
    x = 25,603,611,798.21/254,149.56
  6. Step 6: Final answer
    x = 100,742.30

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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.