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Finding the Fourth Proportional to 91,734.40, 137,601.60 and 54,870.40

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Solution

The fourth proportional to 91,734.40, 137,601.60 and 54,870.40 is: 82,305.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,734.40 : 137,601.60 = 54,870.40 : x
  2. Step 2: Convert to fraction form
    91,734.40/137,601.60 = 54,870.40/x
  3. Step 3: Cross multiply
    91,734.40x = 137,601.60 × 54,870.40
  4. Step 4: Simplify right side
    91,734.40x = 7,550,254,832.64
  5. Step 5: Solve for x
    x = 7,550,254,832.64/91,734.40
  6. Step 6: Final answer
    x = 82,305.60

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