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Finding the Fourth Proportional to 83,970.14, 115,858.89 and 47,663.51

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Solution

The fourth proportional to 83,970.14, 115,858.89 and 47,663.51 is: 65,764.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,970.14 : 115,858.89 = 47,663.51 : x
  2. Step 2: Convert to fraction form
    83,970.14/115,858.89 = 47,663.51/x
  3. Step 3: Cross multiply
    83,970.14x = 115,858.89 × 47,663.51
  4. Step 4: Simplify right side
    83,970.14x = 5,522,240,782.81
  5. Step 5: Solve for x
    x = 5,522,240,782.81/83,970.14
  6. Step 6: Final answer
    x = 65,764.34

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