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Finding the Fourth Proportional to 119,126.32, 164,402.70 and 78,769.96

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Solution

The fourth proportional to 119,126.32, 164,402.70 and 78,769.96 is: 108,708.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,126.32 : 164,402.70 = 78,769.96 : x
  2. Step 2: Convert to fraction form
    119,126.32/164,402.70 = 78,769.96/x
  3. Step 3: Cross multiply
    119,126.32x = 164,402.70 × 78,769.96
  4. Step 4: Simplify right side
    119,126.32x = 12,949,994,102.89
  5. Step 5: Solve for x
    x = 12,949,994,102.89/119,126.32
  6. Step 6: Final answer
    x = 108,708.08

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