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Finding the Fourth Proportional to 93,459.23, 128,972.07 and 53,172.12

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Solution

The fourth proportional to 93,459.23, 128,972.07 and 53,172.12 is: 73,376.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,459.23 : 128,972.07 = 53,172.12 : x
  2. Step 2: Convert to fraction form
    93,459.23/128,972.07 = 53,172.12/x
  3. Step 3: Cross multiply
    93,459.23x = 128,972.07 × 53,172.12
  4. Step 4: Simplify right side
    93,459.23x = 6,857,718,382.69
  5. Step 5: Solve for x
    x = 6,857,718,382.69/93,459.23
  6. Step 6: Final answer
    x = 73,376.58

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