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Finding the Fourth Proportional to 447,940.33, 672,010.12 and 163,630.33

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Solution

The fourth proportional to 447,940.33, 672,010.12 and 163,630.33 is: 245,481.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,940.33 : 672,010.12 = 163,630.33 : x
  2. Step 2: Convert to fraction form
    447,940.33/672,010.12 = 163,630.33/x
  3. Step 3: Cross multiply
    447,940.33x = 672,010.12 × 163,630.33
  4. Step 4: Simplify right side
    447,940.33x = 109,961,236,223.45
  5. Step 5: Solve for x
    x = 109,961,236,223.45/447,940.33
  6. Step 6: Final answer
    x = 245,481.89

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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.