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Finding the Fourth Proportional to 192,485.97, 288,729.09 and 52,244.60

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Solution

The fourth proportional to 192,485.97, 288,729.09 and 52,244.60 is: 78,366.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,485.97 : 288,729.09 = 52,244.60 : x
  2. Step 2: Convert to fraction form
    192,485.97/288,729.09 = 52,244.60/x
  3. Step 3: Cross multiply
    192,485.97x = 288,729.09 × 52,244.60
  4. Step 4: Simplify right side
    192,485.97x = 15,084,534,371.77
  5. Step 5: Solve for x
    x = 15,084,534,371.77/192,485.97
  6. Step 6: Final answer
    x = 78,366.93

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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.