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Finding the Fourth Proportional to 95,653.78, 131,923.61 and 84,906.50

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Solution

The fourth proportional to 95,653.78, 131,923.61 and 84,906.50 is: 117,101.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,653.78 : 131,923.61 = 84,906.50 : x
  2. Step 2: Convert to fraction form
    95,653.78/131,923.61 = 84,906.50/x
  3. Step 3: Cross multiply
    95,653.78x = 131,923.61 × 84,906.50
  4. Step 4: Simplify right side
    95,653.78x = 11,201,171,992.47
  5. Step 5: Solve for x
    x = 11,201,171,992.47/95,653.78
  6. Step 6: Final answer
    x = 117,101.20

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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.