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Finding the Fourth Proportional to 196,906.60, 295,359.90 and 91,930.60

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Solution

The fourth proportional to 196,906.60, 295,359.90 and 91,930.60 is: 137,895.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,906.60 : 295,359.90 = 91,930.60 : x
  2. Step 2: Convert to fraction form
    196,906.60/295,359.90 = 91,930.60/x
  3. Step 3: Cross multiply
    196,906.60x = 295,359.90 × 91,930.60
  4. Step 4: Simplify right side
    196,906.60x = 27,152,612,822.94
  5. Step 5: Solve for x
    x = 27,152,612,822.94/196,906.60
  6. Step 6: Final answer
    x = 137,895.90

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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.