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Finding the Fourth Proportional to 325,504.86, 487,674.09 and 115,008.54

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Solution

The fourth proportional to 325,504.86, 487,674.09 and 115,008.54 is: 172,306.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,504.86 : 487,674.09 = 115,008.54 : x
  2. Step 2: Convert to fraction form
    325,504.86/487,674.09 = 115,008.54/x
  3. Step 3: Cross multiply
    325,504.86x = 487,674.09 × 115,008.54
  4. Step 4: Simplify right side
    325,504.86x = 56,086,685,086.73
  5. Step 5: Solve for x
    x = 56,086,685,086.73/325,504.86
  6. Step 6: Final answer
    x = 172,306.75

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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.