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Finding the Fourth Proportional to 53,845.60, 80,768.40 and 51,426.40

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Solution

The fourth proportional to 53,845.60, 80,768.40 and 51,426.40 is: 77,139.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,845.60 : 80,768.40 = 51,426.40 : x
  2. Step 2: Convert to fraction form
    53,845.60/80,768.40 = 51,426.40/x
  3. Step 3: Cross multiply
    53,845.60x = 80,768.40 × 51,426.40
  4. Step 4: Simplify right side
    53,845.60x = 4,153,628,045.76
  5. Step 5: Solve for x
    x = 4,153,628,045.76/53,845.60
  6. Step 6: Final answer
    x = 77,139.60

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