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Finding the Fourth Proportional to 139,489.85, 192,493.72 and 75,829.25

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Solution

The fourth proportional to 139,489.85, 192,493.72 and 75,829.25 is: 104,643.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,489.85 : 192,493.72 = 75,829.25 : x
  2. Step 2: Convert to fraction form
    139,489.85/192,493.72 = 75,829.25/x
  3. Step 3: Cross multiply
    139,489.85x = 192,493.72 × 75,829.25
  4. Step 4: Simplify right side
    139,489.85x = 14,596,654,417.31
  5. Step 5: Solve for x
    x = 14,596,654,417.31/139,489.85
  6. Step 6: Final answer
    x = 104,643.13

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