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Finding the Fourth Proportional to 95,656.78, 131,927.74 and 84,909.50

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Solution

The fourth proportional to 95,656.78, 131,927.74 and 84,909.50 is: 117,105.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,656.78 : 131,927.74 = 84,909.50 : x
  2. Step 2: Convert to fraction form
    95,656.78/131,927.74 = 84,909.50/x
  3. Step 3: Cross multiply
    95,656.78x = 131,927.74 × 84,909.50
  4. Step 4: Simplify right side
    95,656.78x = 11,201,918,439.53
  5. Step 5: Solve for x
    x = 11,201,918,439.53/95,656.78
  6. Step 6: Final answer
    x = 117,105.33

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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.