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Finding the Fourth Proportional to 325,814.02, 449,623.31 and 198,489.52

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Solution

The fourth proportional to 325,814.02, 449,623.31 and 198,489.52 is: 273,915.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,814.02 : 449,623.31 = 198,489.52 : x
  2. Step 2: Convert to fraction form
    325,814.02/449,623.31 = 198,489.52/x
  3. Step 3: Cross multiply
    325,814.02x = 449,623.31 × 198,489.52
  4. Step 4: Simplify right side
    325,814.02x = 89,245,514,982.71
  5. Step 5: Solve for x
    x = 89,245,514,982.71/325,814.02
  6. Step 6: Final answer
    x = 273,915.51

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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.