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Finding the Fourth Proportional to 372,179.28, 558,268.92 and 161,817.22

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Solution

The fourth proportional to 372,179.28, 558,268.92 and 161,817.22 is: 242,725.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,179.28 : 558,268.92 = 161,817.22 : x
  2. Step 2: Convert to fraction form
    372,179.28/558,268.92 = 161,817.22/x
  3. Step 3: Cross multiply
    372,179.28x = 558,268.92 × 161,817.22
  4. Step 4: Simplify right side
    372,179.28x = 90,337,524,646.80
  5. Step 5: Solve for x
    x = 90,337,524,646.80/372,179.28
  6. Step 6: Final answer
    x = 242,725.83

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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.