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Finding the Fourth Proportional to 168,035.76, 231,894.60 and 96,428.88

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Solution

The fourth proportional to 168,035.76, 231,894.60 and 96,428.88 is: 133,074.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,035.76 : 231,894.60 = 96,428.88 : x
  2. Step 2: Convert to fraction form
    168,035.76/231,894.60 = 96,428.88/x
  3. Step 3: Cross multiply
    168,035.76x = 231,894.60 × 96,428.88
  4. Step 4: Simplify right side
    168,035.76x = 22,361,336,556.05
  5. Step 5: Solve for x
    x = 22,361,336,556.05/168,035.76
  6. Step 6: Final answer
    x = 133,074.87

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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.