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Finding the Fourth Proportional to 84,481.67, 116,584.40 and 45,719.42

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Solution

The fourth proportional to 84,481.67, 116,584.40 and 45,719.42 is: 63,092.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,481.67 : 116,584.40 = 45,719.42 : x
  2. Step 2: Convert to fraction form
    84,481.67/116,584.40 = 45,719.42/x
  3. Step 3: Cross multiply
    84,481.67x = 116,584.40 × 45,719.42
  4. Step 4: Simplify right side
    84,481.67x = 5,330,170,628.99
  5. Step 5: Solve for x
    x = 5,330,170,628.99/84,481.67
  6. Step 6: Final answer
    x = 63,092.63

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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.