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Finding the Fourth Proportional to 139,597.97, 192,644.33 and 75,936.02

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Solution

The fourth proportional to 139,597.97, 192,644.33 and 75,936.02 is: 104,791.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,597.97 : 192,644.33 = 75,936.02 : x
  2. Step 2: Convert to fraction form
    139,597.97/192,644.33 = 75,936.02/x
  3. Step 3: Cross multiply
    139,597.97x = 192,644.33 × 75,936.02
  4. Step 4: Simplify right side
    139,597.97x = 14,628,642,352.86
  5. Step 5: Solve for x
    x = 14,628,642,352.86/139,597.97
  6. Step 6: Final answer
    x = 104,791.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.