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Finding the Fourth Proportional to 124,640.20, 186,960.30 and 35,896.60

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Solution

The fourth proportional to 124,640.20, 186,960.30 and 35,896.60 is: 53,844.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,640.20 : 186,960.30 = 35,896.60 : x
  2. Step 2: Convert to fraction form
    124,640.20/186,960.30 = 35,896.60/x
  3. Step 3: Cross multiply
    124,640.20x = 186,960.30 × 35,896.60
  4. Step 4: Simplify right side
    124,640.20x = 6,711,239,104.98
  5. Step 5: Solve for x
    x = 6,711,239,104.98/124,640.20
  6. Step 6: Final answer
    x = 53,844.90

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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.