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Finding the Fourth Proportional to 324,785.40, 487,035.94 and 172,950.49

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Solution

The fourth proportional to 324,785.40, 487,035.94 and 172,950.49 is: 259,350.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,785.40 : 487,035.94 = 172,950.49 : x
  2. Step 2: Convert to fraction form
    324,785.40/487,035.94 = 172,950.49/x
  3. Step 3: Cross multiply
    324,785.40x = 487,035.94 × 172,950.49
  4. Step 4: Simplify right side
    324,785.40x = 84,233,103,605.86
  5. Step 5: Solve for x
    x = 84,233,103,605.86/324,785.40
  6. Step 6: Final answer
    x = 259,350.04

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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.