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Finding the Fourth Proportional to 169,416.09, 253,958.90 and 80,645.76

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Solution

The fourth proportional to 169,416.09, 253,958.90 and 80,645.76 is: 120,889.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,416.09 : 253,958.90 = 80,645.76 : x
  2. Step 2: Convert to fraction form
    169,416.09/253,958.90 = 80,645.76/x
  3. Step 3: Cross multiply
    169,416.09x = 253,958.90 × 80,645.76
  4. Step 4: Simplify right side
    169,416.09x = 20,480,708,096.04
  5. Step 5: Solve for x
    x = 20,480,708,096.04/169,416.09
  6. Step 6: Final answer
    x = 120,889.98

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