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Finding the Fourth Proportional to 203,675.14, 305,509.35 and 83,707.78

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Solution

The fourth proportional to 203,675.14, 305,509.35 and 83,707.78 is: 125,560.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,675.14 : 305,509.35 = 83,707.78 : x
  2. Step 2: Convert to fraction form
    203,675.14/305,509.35 = 83,707.78/x
  3. Step 3: Cross multiply
    203,675.14x = 305,509.35 × 83,707.78
  4. Step 4: Simplify right side
    203,675.14x = 25,573,509,457.74
  5. Step 5: Solve for x
    x = 25,573,509,457.74/203,675.14
  6. Step 6: Final answer
    x = 125,560.29

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