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Finding the Fourth Proportional to 68,265.99, 102,355.25 and 33,186.51

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Solution

The fourth proportional to 68,265.99, 102,355.25 and 33,186.51 is: 49,758.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,265.99 : 102,355.25 = 33,186.51 : x
  2. Step 2: Convert to fraction form
    68,265.99/102,355.25 = 33,186.51/x
  3. Step 3: Cross multiply
    68,265.99x = 102,355.25 × 33,186.51
  4. Step 4: Simplify right side
    68,265.99x = 3,396,813,361.74
  5. Step 5: Solve for x
    x = 3,396,813,361.74/68,265.99
  6. Step 6: Final answer
    x = 49,758.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.