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Finding the Fourth Proportional to 372,190.80, 558,286.20 and 194,752.20

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Solution

The fourth proportional to 372,190.80, 558,286.20 and 194,752.20 is: 292,128.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,190.80 : 558,286.20 = 194,752.20 : x
  2. Step 2: Convert to fraction form
    372,190.80/558,286.20 = 194,752.20/x
  3. Step 3: Cross multiply
    372,190.80x = 558,286.20 × 194,752.20
  4. Step 4: Simplify right side
    372,190.80x = 108,727,465,679.64
  5. Step 5: Solve for x
    x = 108,727,465,679.64/372,190.80
  6. Step 6: Final answer
    x = 292,128.30

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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.