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Finding the Fourth Proportional to 168,492.36, 252,733.67 and 68,627.85

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Solution

The fourth proportional to 168,492.36, 252,733.67 and 68,627.85 is: 102,939.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,492.36 : 252,733.67 = 68,627.85 : x
  2. Step 2: Convert to fraction form
    168,492.36/252,733.67 = 68,627.85/x
  3. Step 3: Cross multiply
    168,492.36x = 252,733.67 × 68,627.85
  4. Step 4: Simplify right side
    168,492.36x = 17,344,568,051.57
  5. Step 5: Solve for x
    x = 17,344,568,051.57/168,492.36
  6. Step 6: Final answer
    x = 102,939.79

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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.