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Finding the Fourth Proportional to 193,425.30, 290,243.86 and 75,101.31

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Solution

The fourth proportional to 193,425.30, 290,243.86 and 75,101.31 is: 112,693.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,425.30 : 290,243.86 = 75,101.31 : x
  2. Step 2: Convert to fraction form
    193,425.30/290,243.86 = 75,101.31/x
  3. Step 3: Cross multiply
    193,425.30x = 290,243.86 × 75,101.31
  4. Step 4: Simplify right side
    193,425.30x = 21,797,693,917.70
  5. Step 5: Solve for x
    x = 21,797,693,917.70/193,425.30
  6. Step 6: Final answer
    x = 112,693.09

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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.