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Finding the Fourth Proportional to 151,321.82, 208,600.07 and 96,865.97

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Solution

The fourth proportional to 151,321.82, 208,600.07 and 96,865.97 is: 133,531.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,321.82 : 208,600.07 = 96,865.97 : x
  2. Step 2: Convert to fraction form
    151,321.82/208,600.07 = 96,865.97/x
  3. Step 3: Cross multiply
    151,321.82x = 208,600.07 × 96,865.97
  4. Step 4: Simplify right side
    151,321.82x = 20,206,246,595.29
  5. Step 5: Solve for x
    x = 20,206,246,595.29/151,321.82
  6. Step 6: Final answer
    x = 133,531.62

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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.