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Finding the Fourth Proportional to 372,238.80, 558,358.20 and 194,800.20

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Solution

The fourth proportional to 372,238.80, 558,358.20 and 194,800.20 is: 292,200.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,238.80 : 558,358.20 = 194,800.20 : x
  2. Step 2: Convert to fraction form
    372,238.80/558,358.20 = 194,800.20/x
  3. Step 3: Cross multiply
    372,238.80x = 558,358.20 × 194,800.20
  4. Step 4: Simplify right side
    372,238.80x = 108,768,289,031.64
  5. Step 5: Solve for x
    x = 108,768,289,031.64/372,238.80
  6. Step 6: Final answer
    x = 292,200.30

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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.