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Finding the Fourth Proportional to 254,453.20, 381,679.80 and 67,464.70

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Solution

The fourth proportional to 254,453.20, 381,679.80 and 67,464.70 is: 101,197.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,453.20 : 381,679.80 = 67,464.70 : x
  2. Step 2: Convert to fraction form
    254,453.20/381,679.80 = 67,464.70/x
  3. Step 3: Cross multiply
    254,453.20x = 381,679.80 × 67,464.70
  4. Step 4: Simplify right side
    254,453.20x = 25,749,913,203.06
  5. Step 5: Solve for x
    x = 25,749,913,203.06/254,453.20
  6. Step 6: Final answer
    x = 101,197.05

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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.