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Finding the Fourth Proportional to 299,442.80, 449,164.20 and 181,344.80

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Solution

The fourth proportional to 299,442.80, 449,164.20 and 181,344.80 is: 272,017.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,442.80 : 449,164.20 = 181,344.80 : x
  2. Step 2: Convert to fraction form
    299,442.80/449,164.20 = 181,344.80/x
  3. Step 3: Cross multiply
    299,442.80x = 449,164.20 × 181,344.80
  4. Step 4: Simplify right side
    299,442.80x = 81,453,592,016.16
  5. Step 5: Solve for x
    x = 81,453,592,016.16/299,442.80
  6. Step 6: Final answer
    x = 272,017.20

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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.