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Finding the Fourth Proportional to 323,550.20, 485,325.30 and 113,166.20

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Solution

The fourth proportional to 323,550.20, 485,325.30 and 113,166.20 is: 169,749.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,550.20 : 485,325.30 = 113,166.20 : x
  2. Step 2: Convert to fraction form
    323,550.20/485,325.30 = 113,166.20/x
  3. Step 3: Cross multiply
    323,550.20x = 485,325.30 × 113,166.20
  4. Step 4: Simplify right side
    323,550.20x = 54,922,419,964.86
  5. Step 5: Solve for x
    x = 54,922,419,964.86/323,550.20
  6. Step 6: Final answer
    x = 169,749.30

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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.