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Finding the Fourth Proportional to 105,675.84, 145,832.67 and 57,928.16

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Solution

The fourth proportional to 105,675.84, 145,832.67 and 57,928.16 is: 79,940.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,675.84 : 145,832.67 = 57,928.16 : x
  2. Step 2: Convert to fraction form
    105,675.84/145,832.67 = 57,928.16/x
  3. Step 3: Cross multiply
    105,675.84x = 145,832.67 × 57,928.16
  4. Step 4: Simplify right side
    105,675.84x = 8,447,818,605.57
  5. Step 5: Solve for x
    x = 8,447,818,605.57/105,675.84
  6. Step 6: Final answer
    x = 79,940.87

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