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Finding the Fourth Proportional to 321,467.40, 482,201.03 and 108,217.42

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Solution

The fourth proportional to 321,467.40, 482,201.03 and 108,217.42 is: 162,326.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,467.40 : 482,201.03 = 108,217.42 : x
  2. Step 2: Convert to fraction form
    321,467.40/482,201.03 = 108,217.42/x
  3. Step 3: Cross multiply
    321,467.40x = 482,201.03 × 108,217.42
  4. Step 4: Simplify right side
    321,467.40x = 52,182,550,452.98
  5. Step 5: Solve for x
    x = 52,182,550,452.98/321,467.40
  6. Step 6: Final answer
    x = 162,326.10

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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.