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Finding the Fourth Proportional to 322,677.26, 445,305.50 and 177,489.21

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Solution

The fourth proportional to 322,677.26, 445,305.50 and 177,489.21 is: 244,941.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,677.26 : 445,305.50 = 177,489.21 : x
  2. Step 2: Convert to fraction form
    322,677.26/445,305.50 = 177,489.21/x
  3. Step 3: Cross multiply
    322,677.26x = 445,305.50 × 177,489.21
  4. Step 4: Simplify right side
    322,677.26x = 79,036,921,403.66
  5. Step 5: Solve for x
    x = 79,036,921,403.66/322,677.26
  6. Step 6: Final answer
    x = 244,941.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.