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Finding the Fourth Proportional to 48,188.22, 72,283.29 and 13,128.78

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Solution

The fourth proportional to 48,188.22, 72,283.29 and 13,128.78 is: 19,693.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,188.22 : 72,283.29 = 13,128.78 : x
  2. Step 2: Convert to fraction form
    48,188.22/72,283.29 = 13,128.78/x
  3. Step 3: Cross multiply
    48,188.22x = 72,283.29 × 13,128.78
  4. Step 4: Simplify right side
    48,188.22x = 948,991,412.09
  5. Step 5: Solve for x
    x = 948,991,412.09/48,188.22
  6. Step 6: Final answer
    x = 19,693.43

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