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Finding the Fourth Proportional to 264,612.38, 396,923.85 and 84,732.12

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Solution

The fourth proportional to 264,612.38, 396,923.85 and 84,732.12 is: 127,099.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,612.38 : 396,923.85 = 84,732.12 : x
  2. Step 2: Convert to fraction form
    264,612.38/396,923.85 = 84,732.12/x
  3. Step 3: Cross multiply
    264,612.38x = 396,923.85 × 84,732.12
  4. Step 4: Simplify right side
    264,612.38x = 33,632,199,289.06
  5. Step 5: Solve for x
    x = 33,632,199,289.06/264,612.38
  6. Step 6: Final answer
    x = 127,099.87

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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.