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Finding the Fourth Proportional to 299,481.47, 449,072.35 and 99,732.23

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Solution

The fourth proportional to 299,481.47, 449,072.35 and 99,732.23 is: 149,548.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,481.47 : 449,072.35 = 99,732.23 : x
  2. Step 2: Convert to fraction form
    299,481.47/449,072.35 = 99,732.23/x
  3. Step 3: Cross multiply
    299,481.47x = 449,072.35 × 99,732.23
  4. Step 4: Simplify right side
    299,481.47x = 44,786,984,402.15
  5. Step 5: Solve for x
    x = 44,786,984,402.15/299,481.47
  6. Step 6: Final answer
    x = 149,548.43

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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.