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Finding the Fourth Proportional to 362,076.77, 543,115.61 and 125,419.43

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Solution

The fourth proportional to 362,076.77, 543,115.61 and 125,419.43 is: 188,129.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,076.77 : 543,115.61 = 125,419.43 : x
  2. Step 2: Convert to fraction form
    362,076.77/543,115.61 = 125,419.43/x
  3. Step 3: Cross multiply
    362,076.77x = 543,115.61 × 125,419.43
  4. Step 4: Simplify right side
    362,076.77x = 68,117,250,230.30
  5. Step 5: Solve for x
    x = 68,117,250,230.30/362,076.77
  6. Step 6: Final answer
    x = 188,129.30

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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.