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Finding the Fourth Proportional to 78,496.96, 108,303.84 and 74,557.12

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Solution

The fourth proportional to 78,496.96, 108,303.84 and 74,557.12 is: 102,867.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,496.96 : 108,303.84 = 74,557.12 : x
  2. Step 2: Convert to fraction form
    78,496.96/108,303.84 = 74,557.12/x
  3. Step 3: Cross multiply
    78,496.96x = 108,303.84 × 74,557.12
  4. Step 4: Simplify right side
    78,496.96x = 8,074,822,395.34
  5. Step 5: Solve for x
    x = 8,074,822,395.34/78,496.96
  6. Step 6: Final answer
    x = 102,867.96

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