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Finding the Fourth Proportional to 327,625.40, 491,438.10 and 161,737.40

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Solution

The fourth proportional to 327,625.40, 491,438.10 and 161,737.40 is: 242,606.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,625.40 : 491,438.10 = 161,737.40 : x
  2. Step 2: Convert to fraction form
    327,625.40/491,438.10 = 161,737.40/x
  3. Step 3: Cross multiply
    327,625.40x = 491,438.10 × 161,737.40
  4. Step 4: Simplify right side
    327,625.40x = 79,483,920,554.94
  5. Step 5: Solve for x
    x = 79,483,920,554.94/327,625.40
  6. Step 6: Final answer
    x = 242,606.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.