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Finding the Fourth Proportional to 118,635.49, 163,716.99 and 64,920.51

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Solution

The fourth proportional to 118,635.49, 163,716.99 and 64,920.51 is: 89,590.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,635.49 : 163,716.99 = 64,920.51 : x
  2. Step 2: Convert to fraction form
    118,635.49/163,716.99 = 64,920.51/x
  3. Step 3: Cross multiply
    118,635.49x = 163,716.99 × 64,920.51
  4. Step 4: Simplify right side
    118,635.49x = 10,628,590,486.46
  5. Step 5: Solve for x
    x = 10,628,590,486.46/118,635.49
  6. Step 6: Final answer
    x = 89,590.31

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