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Finding the Fourth Proportional to 168,292.56, 252,245.04 and 68,343

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Solution

The fourth proportional to 168,292.56, 252,245.04 and 68,343 is: 102,435.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,292.56 : 252,245.04 = 68,343 : x
  2. Step 2: Convert to fraction form
    168,292.56/252,245.04 = 68,343/x
  3. Step 3: Cross multiply
    168,292.56x = 252,245.04 × 68,343
  4. Step 4: Simplify right side
    168,292.56x = 17,239,182,768.72
  5. Step 5: Solve for x
    x = 17,239,182,768.72/168,292.56
  6. Step 6: Final answer
    x = 102,435.80

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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.