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Finding the Fourth Proportional to 331,034.48, 496,554.96 and 131,402.96

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Solution

The fourth proportional to 331,034.48, 496,554.96 and 131,402.96 is: 197,105.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,034.48 : 496,554.96 = 131,402.96 : x
  2. Step 2: Convert to fraction form
    331,034.48/496,554.96 = 131,402.96/x
  3. Step 3: Cross multiply
    331,034.48x = 496,554.96 × 131,402.96
  4. Step 4: Simplify right side
    331,034.48x = 65,248,791,546.68
  5. Step 5: Solve for x
    x = 65,248,791,546.68/331,034.48
  6. Step 6: Final answer
    x = 197,105.73

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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.