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Finding the Fourth Proportional to 126,696.40, 190,044.60 and 33,211.60

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Solution

The fourth proportional to 126,696.40, 190,044.60 and 33,211.60 is: 49,817.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,696.40 : 190,044.60 = 33,211.60 : x
  2. Step 2: Convert to fraction form
    126,696.40/190,044.60 = 33,211.60/x
  3. Step 3: Cross multiply
    126,696.40x = 190,044.60 × 33,211.60
  4. Step 4: Simplify right side
    126,696.40x = 6,311,685,237.36
  5. Step 5: Solve for x
    x = 6,311,685,237.36/126,696.40
  6. Step 6: Final answer
    x = 49,817.40

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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.