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Finding the Fourth Proportional to 139,245.77, 192,160.01 and 75,584.03

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Solution

The fourth proportional to 139,245.77, 192,160.01 and 75,584.03 is: 104,306.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,245.77 : 192,160.01 = 75,584.03 : x
  2. Step 2: Convert to fraction form
    139,245.77/192,160.01 = 75,584.03/x
  3. Step 3: Cross multiply
    139,245.77x = 192,160.01 × 75,584.03
  4. Step 4: Simplify right side
    139,245.77x = 14,524,227,188.80
  5. Step 5: Solve for x
    x = 14,524,227,188.80/139,245.77
  6. Step 6: Final answer
    x = 104,306.41

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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.