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Finding the Fourth Proportional to 301,833.12, 452,749.20 and 80,217.12

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Solution

The fourth proportional to 301,833.12, 452,749.20 and 80,217.12 is: 120,325.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,833.12 : 452,749.20 = 80,217.12 : x
  2. Step 2: Convert to fraction form
    301,833.12/452,749.20 = 80,217.12/x
  3. Step 3: Cross multiply
    301,833.12x = 452,749.20 × 80,217.12
  4. Step 4: Simplify right side
    301,833.12x = 36,318,236,906.30
  5. Step 5: Solve for x
    x = 36,318,236,906.30/301,833.12
  6. Step 6: Final answer
    x = 120,325.55

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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.