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Finding the Fourth Proportional to 299,658.63, 449,484.86 and 173,218.42

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Solution

The fourth proportional to 299,658.63, 449,484.86 and 173,218.42 is: 259,825.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,658.63 : 449,484.86 = 173,218.42 : x
  2. Step 2: Convert to fraction form
    299,658.63/449,484.86 = 173,218.42/x
  3. Step 3: Cross multiply
    299,658.63x = 449,484.86 × 173,218.42
  4. Step 4: Simplify right side
    299,658.63x = 77,859,057,991.32
  5. Step 5: Solve for x
    x = 77,859,057,991.32/299,658.63
  6. Step 6: Final answer
    x = 259,825.85

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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.