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Finding the Fourth Proportional to 327,359.61, 491,060.18 and 102,728.93

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Solution

The fourth proportional to 327,359.61, 491,060.18 and 102,728.93 is: 154,099.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,359.61 : 491,060.18 = 102,728.93 : x
  2. Step 2: Convert to fraction form
    327,359.61/491,060.18 = 102,728.93/x
  3. Step 3: Cross multiply
    327,359.61x = 491,060.18 × 102,728.93
  4. Step 4: Simplify right side
    327,359.61x = 50,446,084,658.53
  5. Step 5: Solve for x
    x = 50,446,084,658.53/327,359.61
  6. Step 6: Final answer
    x = 154,099.90

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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.