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Finding the Fourth Proportional to 131,481.60, 196,876.80 and 96,230.40

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Solution

The fourth proportional to 131,481.60, 196,876.80 and 96,230.40 is: 144,092.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,481.60 : 196,876.80 = 96,230.40 : x
  2. Step 2: Convert to fraction form
    131,481.60/196,876.80 = 96,230.40/x
  3. Step 3: Cross multiply
    131,481.60x = 196,876.80 × 96,230.40
  4. Step 4: Simplify right side
    131,481.60x = 18,945,533,214.72
  5. Step 5: Solve for x
    x = 18,945,533,214.72/131,481.60
  6. Step 6: Final answer
    x = 144,092.66

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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.