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Finding the Fourth Proportional to 331,350.20, 497,025.30 and 82,032.20

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Solution

The fourth proportional to 331,350.20, 497,025.30 and 82,032.20 is: 123,048.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,350.20 : 497,025.30 = 82,032.20 : x
  2. Step 2: Convert to fraction form
    331,350.20/497,025.30 = 82,032.20/x
  3. Step 3: Cross multiply
    331,350.20x = 497,025.30 × 82,032.20
  4. Step 4: Simplify right side
    331,350.20x = 40,772,078,814.66
  5. Step 5: Solve for x
    x = 40,772,078,814.66/331,350.20
  6. Step 6: Final answer
    x = 123,048.30

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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.