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Finding the Fourth Proportional to 299,811.98, 449,589.95 and 173,539.38

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Solution

The fourth proportional to 299,811.98, 449,589.95 and 173,539.38 is: 260,234.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,811.98 : 449,589.95 = 173,539.38 : x
  2. Step 2: Convert to fraction form
    299,811.98/449,589.95 = 173,539.38/x
  3. Step 3: Cross multiply
    299,811.98x = 449,589.95 × 173,539.38
  4. Step 4: Simplify right side
    299,811.98x = 78,021,562,646.27
  5. Step 5: Solve for x
    x = 78,021,562,646.27/299,811.98
  6. Step 6: Final answer
    x = 260,234.97

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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.