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Finding the Fourth Proportional to 72,669.64, 100,288.23 and 48,428.50

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Solution

The fourth proportional to 72,669.64, 100,288.23 and 48,428.50 is: 66,834.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,669.64 : 100,288.23 = 48,428.50 : x
  2. Step 2: Convert to fraction form
    72,669.64/100,288.23 = 48,428.50/x
  3. Step 3: Cross multiply
    72,669.64x = 100,288.23 × 48,428.50
  4. Step 4: Simplify right side
    72,669.64x = 4,856,808,546.56
  5. Step 5: Solve for x
    x = 4,856,808,546.56/72,669.64
  6. Step 6: Final answer
    x = 66,834.08

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