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Finding the Fourth Proportional to 492,165.72, 738,310.14 and 192,607.61

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Solution

The fourth proportional to 492,165.72, 738,310.14 and 192,607.61 is: 288,935.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,165.72 : 738,310.14 = 192,607.61 : x
  2. Step 2: Convert to fraction form
    492,165.72/738,310.14 = 192,607.61/x
  3. Step 3: Cross multiply
    492,165.72x = 738,310.14 × 192,607.61
  4. Step 4: Simplify right side
    492,165.72x = 142,204,147,812.62
  5. Step 5: Solve for x
    x = 142,204,147,812.62/492,165.72
  6. Step 6: Final answer
    x = 288,935.50

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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.