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Finding the Fourth Proportional to 374,458.80, 561,688.20 and 121,738.80

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Solution

The fourth proportional to 374,458.80, 561,688.20 and 121,738.80 is: 182,608.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,458.80 : 561,688.20 = 121,738.80 : x
  2. Step 2: Convert to fraction form
    374,458.80/561,688.20 = 121,738.80/x
  3. Step 3: Cross multiply
    374,458.80x = 561,688.20 × 121,738.80
  4. Step 4: Simplify right side
    374,458.80x = 68,379,247,442.16
  5. Step 5: Solve for x
    x = 68,379,247,442.16/374,458.80
  6. Step 6: Final answer
    x = 182,608.20

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