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Finding the Fourth Proportional to 118,586.09, 163,647.47 and 64,870.47

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Solution

The fourth proportional to 118,586.09, 163,647.47 and 64,870.47 is: 89,520.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,586.09 : 163,647.47 = 64,870.47 : x
  2. Step 2: Convert to fraction form
    118,586.09/163,647.47 = 64,870.47/x
  3. Step 3: Cross multiply
    118,586.09x = 163,647.47 × 64,870.47
  4. Step 4: Simplify right side
    118,586.09x = 10,615,887,474.97
  5. Step 5: Solve for x
    x = 10,615,887,474.97/118,586.09
  6. Step 6: Final answer
    x = 89,520.51

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