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Finding the Fourth Proportional to 319,216.80, 478,825.20 and 97,600.80

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Solution

The fourth proportional to 319,216.80, 478,825.20 and 97,600.80 is: 146,401.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,216.80 : 478,825.20 = 97,600.80 : x
  2. Step 2: Convert to fraction form
    319,216.80/478,825.20 = 97,600.80/x
  3. Step 3: Cross multiply
    319,216.80x = 478,825.20 × 97,600.80
  4. Step 4: Simplify right side
    319,216.80x = 46,733,722,580.16
  5. Step 5: Solve for x
    x = 46,733,722,580.16/319,216.80
  6. Step 6: Final answer
    x = 146,401.20

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