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Finding the Fourth Proportional to 299,848.80, 449,485.20 and 173,359.20

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Solution

The fourth proportional to 299,848.80, 449,485.20 and 173,359.20 is: 259,872.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,848.80 : 449,485.20 = 173,359.20 : x
  2. Step 2: Convert to fraction form
    299,848.80/449,485.20 = 173,359.20/x
  3. Step 3: Cross multiply
    299,848.80x = 449,485.20 × 173,359.20
  4. Step 4: Simplify right side
    299,848.80x = 77,922,394,683.84
  5. Step 5: Solve for x
    x = 77,922,394,683.84/299,848.80
  6. Step 6: Final answer
    x = 259,872.29

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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.