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Finding the Fourth Proportional to 156,967.20, 235,105.20 and 136,231.20

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Solution

The fourth proportional to 156,967.20, 235,105.20 and 136,231.20 is: 204,046.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,967.20 : 235,105.20 = 136,231.20 : x
  2. Step 2: Convert to fraction form
    156,967.20/235,105.20 = 136,231.20/x
  3. Step 3: Cross multiply
    156,967.20x = 235,105.20 × 136,231.20
  4. Step 4: Simplify right side
    156,967.20x = 32,028,663,522.24
  5. Step 5: Solve for x
    x = 32,028,663,522.24/156,967.20
  6. Step 6: Final answer
    x = 204,046.86

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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.