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Finding the Fourth Proportional to 136,940.16, 205,468.80 and 65,828.64

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Solution

The fourth proportional to 136,940.16, 205,468.80 and 65,828.64 is: 98,771.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,940.16 : 205,468.80 = 65,828.64 : x
  2. Step 2: Convert to fraction form
    136,940.16/205,468.80 = 65,828.64/x
  3. Step 3: Cross multiply
    136,940.16x = 205,468.80 × 65,828.64
  4. Step 4: Simplify right side
    136,940.16x = 13,525,731,666.43
  5. Step 5: Solve for x
    x = 13,525,731,666.43/136,940.16
  6. Step 6: Final answer
    x = 98,771.11

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