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Finding the Fourth Proportional to 158,645.82, 218,931.57 and 87,026.43

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Solution

The fourth proportional to 158,645.82, 218,931.57 and 87,026.43 is: 120,096.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,645.82 : 218,931.57 = 87,026.43 : x
  2. Step 2: Convert to fraction form
    158,645.82/218,931.57 = 87,026.43/x
  3. Step 3: Cross multiply
    158,645.82x = 218,931.57 × 87,026.43
  4. Step 4: Simplify right side
    158,645.82x = 19,052,832,951.40
  5. Step 5: Solve for x
    x = 19,052,832,951.40/158,645.82
  6. Step 6: Final answer
    x = 120,096.66

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