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Finding the Fourth Proportional to 449,824.79, 674,855.34 and 161,665.52

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Solution

The fourth proportional to 449,824.79, 674,855.34 and 161,665.52 is: 242,540.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,824.79 : 674,855.34 = 161,665.52 : x
  2. Step 2: Convert to fraction form
    449,824.79/674,855.34 = 161,665.52/x
  3. Step 3: Cross multiply
    449,824.79x = 674,855.34 × 161,665.52
  4. Step 4: Simplify right side
    449,824.79x = 109,100,836,091.60
  5. Step 5: Solve for x
    x = 109,100,836,091.60/449,824.79
  6. Step 6: Final answer
    x = 242,540.74

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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.