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Finding the Fourth Proportional to 139,801, 192,933.06 and 80,188.84

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Solution

The fourth proportional to 139,801, 192,933.06 and 80,188.84 is: 110,665.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,801 : 192,933.06 = 80,188.84 : x
  2. Step 2: Convert to fraction form
    139,801/192,933.06 = 80,188.84/x
  3. Step 3: Cross multiply
    139,801x = 192,933.06 × 80,188.84
  4. Step 4: Simplify right side
    139,801x = 15,471,078,279.05
  5. Step 5: Solve for x
    x = 15,471,078,279.05/139,801
  6. Step 6: Final answer
    x = 110,665.00

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