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Finding the Fourth Proportional to 76,140.19, 104,972.79 and 62,478.19

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Solution

The fourth proportional to 76,140.19, 104,972.79 and 62,478.19 is: 86,137.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,140.19 : 104,972.79 = 62,478.19 : x
  2. Step 2: Convert to fraction form
    76,140.19/104,972.79 = 62,478.19/x
  3. Step 3: Cross multiply
    76,140.19x = 104,972.79 × 62,478.19
  4. Step 4: Simplify right side
    76,140.19x = 6,558,509,918.45
  5. Step 5: Solve for x
    x = 6,558,509,918.45/76,140.19
  6. Step 6: Final answer
    x = 86,137.29

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