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Finding the Fourth Proportional to 331,954.67, 497,676.79 and 171,858.98

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Solution

The fourth proportional to 331,954.67, 497,676.79 and 171,858.98 is: 257,656.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,954.67 : 497,676.79 = 171,858.98 : x
  2. Step 2: Convert to fraction form
    331,954.67/497,676.79 = 171,858.98/x
  3. Step 3: Cross multiply
    331,954.67x = 497,676.79 × 171,858.98
  4. Step 4: Simplify right side
    331,954.67x = 85,530,226,958.09
  5. Step 5: Solve for x
    x = 85,530,226,958.09/331,954.67
  6. Step 6: Final answer
    x = 257,656.34

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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.