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Finding the Fourth Proportional to 422,477.38, 633,819.93 and 122,960.62

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Solution

The fourth proportional to 422,477.38, 633,819.93 and 122,960.62 is: 184,471.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,477.38 : 633,819.93 = 122,960.62 : x
  2. Step 2: Convert to fraction form
    422,477.38/633,819.93 = 122,960.62/x
  3. Step 3: Cross multiply
    422,477.38x = 633,819.93 × 122,960.62
  4. Step 4: Simplify right side
    422,477.38x = 77,934,891,561.16
  5. Step 5: Solve for x
    x = 77,934,891,561.16/422,477.38
  6. Step 6: Final answer
    x = 184,471.16

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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.