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Finding the Fourth Proportional to 223,173.64, 307,978.64 and 121,198.30

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Solution

The fourth proportional to 223,173.64, 307,978.64 and 121,198.30 is: 167,253.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,173.64 : 307,978.64 = 121,198.30 : x
  2. Step 2: Convert to fraction form
    223,173.64/307,978.64 = 121,198.30/x
  3. Step 3: Cross multiply
    223,173.64x = 307,978.64 × 121,198.30
  4. Step 4: Simplify right side
    223,173.64x = 37,326,486,998.32
  5. Step 5: Solve for x
    x = 37,326,486,998.32/223,173.64
  6. Step 6: Final answer
    x = 167,253.12

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