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Finding the Fourth Proportional to 331,366.60, 496,777.74 and 131,601.16

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Solution

The fourth proportional to 331,366.60, 496,777.74 and 131,601.16 is: 197,293.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,366.60 : 496,777.74 = 131,601.16 : x
  2. Step 2: Convert to fraction form
    331,366.60/496,777.74 = 131,601.16/x
  3. Step 3: Cross multiply
    331,366.60x = 496,777.74 × 131,601.16
  4. Step 4: Simplify right side
    331,366.60x = 65,376,526,846.18
  5. Step 5: Solve for x
    x = 65,376,526,846.18/331,366.60
  6. Step 6: Final answer
    x = 197,293.65

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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.