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Finding the Fourth Proportional to 204,039.70, 306,059.55 and 70,933.41

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Solution

The fourth proportional to 204,039.70, 306,059.55 and 70,933.41 is: 106,400.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,039.70 : 306,059.55 = 70,933.41 : x
  2. Step 2: Convert to fraction form
    204,039.70/306,059.55 = 70,933.41/x
  3. Step 3: Cross multiply
    204,039.70x = 306,059.55 × 70,933.41
  4. Step 4: Simplify right side
    204,039.70x = 21,709,847,544.57
  5. Step 5: Solve for x
    x = 21,709,847,544.57/204,039.70
  6. Step 6: Final answer
    x = 106,400.12

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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.