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Finding the Fourth Proportional to 118,700.53, 163,805.93 and 64,986.45

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Solution

The fourth proportional to 118,700.53, 163,805.93 and 64,986.45 is: 89,680.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,700.53 : 163,805.93 = 64,986.45 : x
  2. Step 2: Convert to fraction form
    118,700.53/163,805.93 = 64,986.45/x
  3. Step 3: Cross multiply
    118,700.53x = 163,805.93 × 64,986.45
  4. Step 4: Simplify right side
    118,700.53x = 10,645,165,879.65
  5. Step 5: Solve for x
    x = 10,645,165,879.65/118,700.53
  6. Step 6: Final answer
    x = 89,680.86

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