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Finding the Fourth Proportional to 372,234.80, 558,179.40 and 161,764.40

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Solution

The fourth proportional to 372,234.80, 558,179.40 and 161,764.40 is: 242,571.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,234.80 : 558,179.40 = 161,764.40 : x
  2. Step 2: Convert to fraction form
    372,234.80/558,179.40 = 161,764.40/x
  3. Step 3: Cross multiply
    372,234.80x = 558,179.40 × 161,764.40
  4. Step 4: Simplify right side
    372,234.80x = 90,293,555,733.36
  5. Step 5: Solve for x
    x = 90,293,555,733.36/372,234.80
  6. Step 6: Final answer
    x = 242,571.51

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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.