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Finding the Fourth Proportional to 168,019.76, 231,872.52 and 96,412.88

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Solution

The fourth proportional to 168,019.76, 231,872.52 and 96,412.88 is: 133,052.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,019.76 : 231,872.52 = 96,412.88 : x
  2. Step 2: Convert to fraction form
    168,019.76/231,872.52 = 96,412.88/x
  3. Step 3: Cross multiply
    168,019.76x = 231,872.52 × 96,412.88
  4. Step 4: Simplify right side
    168,019.76x = 22,355,497,446.06
  5. Step 5: Solve for x
    x = 22,355,497,446.06/168,019.76
  6. Step 6: Final answer
    x = 133,052.79

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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.