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Finding the Fourth Proportional to 331,242.76, 496,540.14 and 131,496.76

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Solution

The fourth proportional to 331,242.76, 496,540.14 and 131,496.76 is: 197,116.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,242.76 : 496,540.14 = 131,496.76 : x
  2. Step 2: Convert to fraction form
    331,242.76/496,540.14 = 131,496.76/x
  3. Step 3: Cross multiply
    331,242.76x = 496,540.14 × 131,496.76
  4. Step 4: Simplify right side
    331,242.76x = 65,293,419,619.95
  5. Step 5: Solve for x
    x = 65,293,419,619.95/331,242.76
  6. Step 6: Final answer
    x = 197,116.52

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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.