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Finding the Fourth Proportional to 110,981.10, 166,483.80 and 107,481.90

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Solution

The fourth proportional to 110,981.10, 166,483.80 and 107,481.90 is: 161,234.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,981.10 : 166,483.80 = 107,481.90 : x
  2. Step 2: Convert to fraction form
    110,981.10/166,483.80 = 107,481.90/x
  3. Step 3: Cross multiply
    110,981.10x = 166,483.80 × 107,481.90
  4. Step 4: Simplify right side
    110,981.10x = 17,893,995,143.22
  5. Step 5: Solve for x
    x = 17,893,995,143.22/110,981.10
  6. Step 6: Final answer
    x = 161,234.62

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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.