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Finding the Fourth Proportional to 299,849.80, 449,486.70 and 173,360.20

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Solution

The fourth proportional to 299,849.80, 449,486.70 and 173,360.20 is: 259,873.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,849.80 : 449,486.70 = 173,360.20 : x
  2. Step 2: Convert to fraction form
    299,849.80/449,486.70 = 173,360.20/x
  3. Step 3: Cross multiply
    299,849.80x = 449,486.70 × 173,360.20
  4. Step 4: Simplify right side
    299,849.80x = 77,923,104,209.34
  5. Step 5: Solve for x
    x = 77,923,104,209.34/299,849.80
  6. Step 6: Final answer
    x = 259,873.79

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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.