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Finding the Fourth Proportional to 208,700.79, 313,063.59 and 80,618.04

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Solution

The fourth proportional to 208,700.79, 313,063.59 and 80,618.04 is: 120,931.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,700.79 : 313,063.59 = 80,618.04 : x
  2. Step 2: Convert to fraction form
    208,700.79/313,063.59 = 80,618.04/x
  3. Step 3: Cross multiply
    208,700.79x = 313,063.59 × 80,618.04
  4. Step 4: Simplify right side
    208,700.79x = 25,238,573,021.16
  5. Step 5: Solve for x
    x = 25,238,573,021.16/208,700.79
  6. Step 6: Final answer
    x = 120,931.85

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