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Finding the Fourth Proportional to 264,637.62, 396,896.61 and 122,404.86

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Solution

The fourth proportional to 264,637.62, 396,896.61 and 122,404.86 is: 183,579.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,637.62 : 396,896.61 = 122,404.86 : x
  2. Step 2: Convert to fraction form
    264,637.62/396,896.61 = 122,404.86/x
  3. Step 3: Cross multiply
    264,637.62x = 396,896.61 × 122,404.86
  4. Step 4: Simplify right side
    264,637.62x = 48,582,073,981.52
  5. Step 5: Solve for x
    x = 48,582,073,981.52/264,637.62
  6. Step 6: Final answer
    x = 183,579.62

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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.