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Finding the Fourth Proportional to 140,337, 193,610.09 and 86,528.61

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Solution

The fourth proportional to 140,337, 193,610.09 and 86,528.61 is: 119,375.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,337 : 193,610.09 = 86,528.61 : x
  2. Step 2: Convert to fraction form
    140,337/193,610.09 = 86,528.61/x
  3. Step 3: Cross multiply
    140,337x = 193,610.09 × 86,528.61
  4. Step 4: Simplify right side
    140,337x = 16,752,811,537.03
  5. Step 5: Solve for x
    x = 16,752,811,537.03/140,337
  6. Step 6: Final answer
    x = 119,375.59

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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.