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Finding the Fourth Proportional to 68,076.45, 102,114.68 and 33,084.45

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Solution

The fourth proportional to 68,076.45, 102,114.68 and 33,084.45 is: 49,626.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,076.45 : 102,114.68 = 33,084.45 : x
  2. Step 2: Convert to fraction form
    68,076.45/102,114.68 = 33,084.45/x
  3. Step 3: Cross multiply
    68,076.45x = 102,114.68 × 33,084.45
  4. Step 4: Simplify right side
    68,076.45x = 3,378,407,859.30
  5. Step 5: Solve for x
    x = 3,378,407,859.30/68,076.45
  6. Step 6: Final answer
    x = 49,626.68

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1.5x scale

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.