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Finding the Fourth Proportional to 449,172.06, 673,669.80 and 133,558.80

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Solution

The fourth proportional to 449,172.06, 673,669.80 and 133,558.80 is: 200,311.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,172.06 : 673,669.80 = 133,558.80 : x
  2. Step 2: Convert to fraction form
    449,172.06/673,669.80 = 133,558.80/x
  3. Step 3: Cross multiply
    449,172.06x = 673,669.80 × 133,558.80
  4. Step 4: Simplify right side
    449,172.06x = 89,974,530,084.24
  5. Step 5: Solve for x
    x = 89,974,530,084.24/449,172.06
  6. Step 6: Final answer
    x = 200,311.95

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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.