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Finding the Fourth Proportional to 238,813.09, 329,609.14 and 136,906.97

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Solution

The fourth proportional to 238,813.09, 329,609.14 and 136,906.97 is: 188,958.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,813.09 : 329,609.14 = 136,906.97 : x
  2. Step 2: Convert to fraction form
    238,813.09/329,609.14 = 136,906.97/x
  3. Step 3: Cross multiply
    238,813.09x = 329,609.14 × 136,906.97
  4. Step 4: Simplify right side
    238,813.09x = 45,125,786,651.39
  5. Step 5: Solve for x
    x = 45,125,786,651.39/238,813.09
  6. Step 6: Final answer
    x = 188,958.60

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1.5x scale

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.