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Finding the Fourth Proportional to 336,451.92, 504,758.88 and 126,091.68

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Solution

The fourth proportional to 336,451.92, 504,758.88 and 126,091.68 is: 189,167.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,451.92 : 504,758.88 = 126,091.68 : x
  2. Step 2: Convert to fraction form
    336,451.92/504,758.88 = 126,091.68/x
  3. Step 3: Cross multiply
    336,451.92x = 504,758.88 × 126,091.68
  4. Step 4: Simplify right side
    336,451.92x = 63,645,895,174.12
  5. Step 5: Solve for x
    x = 63,645,895,174.12/336,451.92
  6. Step 6: Final answer
    x = 189,167.88

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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.