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Finding the Fourth Proportional to 308,825.20, 463,237.80 and 121,812.40

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Solution

The fourth proportional to 308,825.20, 463,237.80 and 121,812.40 is: 182,718.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,825.20 : 463,237.80 = 121,812.40 : x
  2. Step 2: Convert to fraction form
    308,825.20/463,237.80 = 121,812.40/x
  3. Step 3: Cross multiply
    308,825.20x = 463,237.80 × 121,812.40
  4. Step 4: Simplify right side
    308,825.20x = 56,428,108,188.72
  5. Step 5: Solve for x
    x = 56,428,108,188.72/308,825.20
  6. Step 6: Final answer
    x = 182,718.60

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