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Finding the Fourth Proportional to 85,448.16, 128,186.82 and 26,282.52

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Solution

The fourth proportional to 85,448.16, 128,186.82 and 26,282.52 is: 39,428.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,448.16 : 128,186.82 = 26,282.52 : x
  2. Step 2: Convert to fraction form
    85,448.16/128,186.82 = 26,282.52/x
  3. Step 3: Cross multiply
    85,448.16x = 128,186.82 × 26,282.52
  4. Step 4: Simplify right side
    85,448.16x = 3,369,072,660.39
  5. Step 5: Solve for x
    x = 3,369,072,660.39/85,448.16
  6. Step 6: Final answer
    x = 39,428.26

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