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Finding the Fourth Proportional to 449,005.50, 673,619.22 and 133,461.09

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Solution

The fourth proportional to 449,005.50, 673,619.22 and 133,461.09 is: 200,224.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,005.50 : 673,619.22 = 133,461.09 : x
  2. Step 2: Convert to fraction form
    449,005.50/673,619.22 = 133,461.09/x
  3. Step 3: Cross multiply
    449,005.50x = 673,619.22 × 133,461.09
  4. Step 4: Simplify right side
    449,005.50x = 89,901,955,346.15
  5. Step 5: Solve for x
    x = 89,901,955,346.15/449,005.50
  6. Step 6: Final answer
    x = 200,224.62

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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.