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Finding the Fourth Proportional to 321,910.20, 483,326.10 and 181,942.20

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Solution

The fourth proportional to 321,910.20, 483,326.10 and 181,942.20 is: 273,173.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,910.20 : 483,326.10 = 181,942.20 : x
  2. Step 2: Convert to fraction form
    321,910.20/483,326.10 = 181,942.20/x
  3. Step 3: Cross multiply
    321,910.20x = 483,326.10 × 181,942.20
  4. Step 4: Simplify right side
    321,910.20x = 87,937,413,951.42
  5. Step 5: Solve for x
    x = 87,937,413,951.42/321,910.20
  6. Step 6: Final answer
    x = 273,173.74

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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.