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Finding the Fourth Proportional to 336,105.20, 503,963.40 and 125,764.40

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Solution

The fourth proportional to 336,105.20, 503,963.40 and 125,764.40 is: 188,573.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,105.20 : 503,963.40 = 125,764.40 : x
  2. Step 2: Convert to fraction form
    336,105.20/503,963.40 = 125,764.40/x
  3. Step 3: Cross multiply
    336,105.20x = 503,963.40 × 125,764.40
  4. Step 4: Simplify right side
    336,105.20x = 63,380,654,622.96
  5. Step 5: Solve for x
    x = 63,380,654,622.96/336,105.20
  6. Step 6: Final answer
    x = 188,573.86

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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.