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Finding the Fourth Proportional to 422,168.52, 633,120.35 and 122,669.81

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Solution

The fourth proportional to 422,168.52, 633,120.35 and 122,669.81 is: 183,966.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,168.52 : 633,120.35 = 122,669.81 : x
  2. Step 2: Convert to fraction form
    422,168.52/633,120.35 = 122,669.81/x
  3. Step 3: Cross multiply
    422,168.52x = 633,120.35 × 122,669.81
  4. Step 4: Simplify right side
    422,168.52x = 77,664,749,262.68
  5. Step 5: Solve for x
    x = 77,664,749,262.68/422,168.52
  6. Step 6: Final answer
    x = 183,966.23

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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.