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Finding the Fourth Proportional to 85,812.47, 128,718.74 and 23,482.97

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Solution

The fourth proportional to 85,812.47, 128,718.74 and 23,482.97 is: 35,224.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,812.47 : 128,718.74 = 23,482.97 : x
  2. Step 2: Convert to fraction form
    85,812.47/128,718.74 = 23,482.97/x
  3. Step 3: Cross multiply
    85,812.47x = 128,718.74 × 23,482.97
  4. Step 4: Simplify right side
    85,812.47x = 3,022,698,309.86
  5. Step 5: Solve for x
    x = 3,022,698,309.86/85,812.47
  6. Step 6: Final answer
    x = 35,224.46

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