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Finding the Fourth Proportional to 449,486.72, 674,229.76 and 133,935.52

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Solution

The fourth proportional to 449,486.72, 674,229.76 and 133,935.52 is: 200,903.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,486.72 : 674,229.76 = 133,935.52 : x
  2. Step 2: Convert to fraction form
    449,486.72/674,229.76 = 133,935.52/x
  3. Step 3: Cross multiply
    449,486.72x = 674,229.76 × 133,935.52
  4. Step 4: Simplify right side
    449,486.72x = 90,303,313,505.08
  5. Step 5: Solve for x
    x = 90,303,313,505.08/449,486.72
  6. Step 6: Final answer
    x = 200,903.18

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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.