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Finding the Fourth Proportional to 123,944.60, 171,039.84 and 67,356.02

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Solution

The fourth proportional to 123,944.60, 171,039.84 and 67,356.02 is: 92,949.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,944.60 : 171,039.84 = 67,356.02 : x
  2. Step 2: Convert to fraction form
    123,944.60/171,039.84 = 67,356.02/x
  3. Step 3: Cross multiply
    123,944.60x = 171,039.84 × 67,356.02
  4. Step 4: Simplify right side
    123,944.60x = 11,520,562,883.84
  5. Step 5: Solve for x
    x = 11,520,562,883.84/123,944.60
  6. Step 6: Final answer
    x = 92,949.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.