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Finding the Fourth Proportional to 148,640.20, 222,304.20 and 125,020.60

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Solution

The fourth proportional to 148,640.20, 222,304.20 and 125,020.60 is: 186,979.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,640.20 : 222,304.20 = 125,020.60 : x
  2. Step 2: Convert to fraction form
    148,640.20/222,304.20 = 125,020.60/x
  3. Step 3: Cross multiply
    148,640.20x = 222,304.20 × 125,020.60
  4. Step 4: Simplify right side
    148,640.20x = 27,792,604,466.52
  5. Step 5: Solve for x
    x = 27,792,604,466.52/148,640.20
  6. Step 6: Final answer
    x = 186,979.06

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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.