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Finding the Fourth Proportional to 84,970.33, 117,245.91 and 49,163.68

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Solution

The fourth proportional to 84,970.33, 117,245.91 and 49,163.68 is: 67,838.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,970.33 : 117,245.91 = 49,163.68 : x
  2. Step 2: Convert to fraction form
    84,970.33/117,245.91 = 49,163.68/x
  3. Step 3: Cross multiply
    84,970.33x = 117,245.91 × 49,163.68
  4. Step 4: Simplify right side
    84,970.33x = 5,764,240,107.43
  5. Step 5: Solve for x
    x = 5,764,240,107.43/84,970.33
  6. Step 6: Final answer
    x = 67,838.27

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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.