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Finding the Fourth Proportional to 362,686.96, 543,887.97 and 122,734.78

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Solution

The fourth proportional to 362,686.96, 543,887.97 and 122,734.78 is: 184,053.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,686.96 : 543,887.97 = 122,734.78 : x
  2. Step 2: Convert to fraction form
    362,686.96/543,887.97 = 122,734.78/x
  3. Step 3: Cross multiply
    362,686.96x = 543,887.97 × 122,734.78
  4. Step 4: Simplify right side
    362,686.96x = 66,753,970,342.60
  5. Step 5: Solve for x
    x = 66,753,970,342.60/362,686.96
  6. Step 6: Final answer
    x = 184,053.96

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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.