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Finding the Fourth Proportional to 70,696.58, 106,033.86 and 45,912.33

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Solution

The fourth proportional to 70,696.58, 106,033.86 and 45,912.33 is: 68,861.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,696.58 : 106,033.86 = 45,912.33 : x
  2. Step 2: Convert to fraction form
    70,696.58/106,033.86 = 45,912.33/x
  3. Step 3: Cross multiply
    70,696.58x = 106,033.86 × 45,912.33
  4. Step 4: Simplify right side
    70,696.58x = 4,868,261,571.49
  5. Step 5: Solve for x
    x = 4,868,261,571.49/70,696.58
  6. Step 6: Final answer
    x = 68,861.35

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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.