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Finding the Fourth Proportional to 93,063.12, 128,428.10 and 50,621.75

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Solution

The fourth proportional to 93,063.12, 128,428.10 and 50,621.75 is: 69,858.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,063.12 : 128,428.10 = 50,621.75 : x
  2. Step 2: Convert to fraction form
    93,063.12/128,428.10 = 50,621.75/x
  3. Step 3: Cross multiply
    93,063.12x = 128,428.10 × 50,621.75
  4. Step 4: Simplify right side
    93,063.12x = 6,501,255,171.18
  5. Step 5: Solve for x
    x = 6,501,255,171.18/93,063.12
  6. Step 6: Final answer
    x = 69,858.56

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