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Finding the Fourth Proportional to 322,672.86, 445,299.30 and 177,484.77

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Solution

The fourth proportional to 322,672.86, 445,299.30 and 177,484.77 is: 244,934.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,672.86 : 445,299.30 = 177,484.77 : x
  2. Step 2: Convert to fraction form
    322,672.86/445,299.30 = 177,484.77/x
  3. Step 3: Cross multiply
    322,672.86x = 445,299.30 × 177,484.77
  4. Step 4: Simplify right side
    322,672.86x = 79,033,843,841.66
  5. Step 5: Solve for x
    x = 79,033,843,841.66/322,672.86
  6. Step 6: Final answer
    x = 244,934.90

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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.