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Finding the Fourth Proportional to 111,481.20, 153,892.05 and 68,467.67

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Solution

The fourth proportional to 111,481.20, 153,892.05 and 68,467.67 is: 94,514.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,481.20 : 153,892.05 = 68,467.67 : x
  2. Step 2: Convert to fraction form
    111,481.20/153,892.05 = 68,467.67/x
  3. Step 3: Cross multiply
    111,481.20x = 153,892.05 × 68,467.67
  4. Step 4: Simplify right side
    111,481.20x = 10,536,629,325.56
  5. Step 5: Solve for x
    x = 10,536,629,325.56/111,481.20
  6. Step 6: Final answer
    x = 94,514.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.