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Finding the Fourth Proportional to 104,060.62, 156,115.78 and 33,940

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Solution

The fourth proportional to 104,060.62, 156,115.78 and 33,940 is: 50,918.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,060.62 : 156,115.78 = 33,940 : x
  2. Step 2: Convert to fraction form
    104,060.62/156,115.78 = 33,940/x
  3. Step 3: Cross multiply
    104,060.62x = 156,115.78 × 33,940
  4. Step 4: Simplify right side
    104,060.62x = 5,298,569,573.20
  5. Step 5: Solve for x
    x = 5,298,569,573.20/104,060.62
  6. Step 6: Final answer
    x = 50,918.10

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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.