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Finding the Fourth Proportional to 331,229.76, 496,520.64 and 131,483.76

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Solution

The fourth proportional to 331,229.76, 496,520.64 and 131,483.76 is: 197,097.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,229.76 : 496,520.64 = 131,483.76 : x
  2. Step 2: Convert to fraction form
    331,229.76/496,520.64 = 131,483.76/x
  3. Step 3: Cross multiply
    331,229.76x = 496,520.64 × 131,483.76
  4. Step 4: Simplify right side
    331,229.76x = 65,284,400,664.81
  5. Step 5: Solve for x
    x = 65,284,400,664.81/331,229.76
  6. Step 6: Final answer
    x = 197,097.03

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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.