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Finding the Fourth Proportional to 321,431.55, 482,054.37 and 108,175.96

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Solution

The fourth proportional to 321,431.55, 482,054.37 and 108,175.96 is: 162,232.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,431.55 : 482,054.37 = 108,175.96 : x
  2. Step 2: Convert to fraction form
    321,431.55/482,054.37 = 108,175.96/x
  3. Step 3: Cross multiply
    321,431.55x = 482,054.37 × 108,175.96
  4. Step 4: Simplify right side
    321,431.55x = 52,146,694,246.95
  5. Step 5: Solve for x
    x = 52,146,694,246.95/321,431.55
  6. Step 6: Final answer
    x = 162,232.66

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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.