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Finding the Fourth Proportional to 65,404.80, 98,107.20 and 64,713.60

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Solution

The fourth proportional to 65,404.80, 98,107.20 and 64,713.60 is: 97,070.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,404.80 : 98,107.20 = 64,713.60 : x
  2. Step 2: Convert to fraction form
    65,404.80/98,107.20 = 64,713.60/x
  3. Step 3: Cross multiply
    65,404.80x = 98,107.20 × 64,713.60
  4. Step 4: Simplify right side
    65,404.80x = 6,348,870,097.92
  5. Step 5: Solve for x
    x = 6,348,870,097.92/65,404.80
  6. Step 6: Final answer
    x = 97,070.40

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