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Finding the Fourth Proportional to 168,985.60, 253,478.40 and 167,819.20

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Solution

The fourth proportional to 168,985.60, 253,478.40 and 167,819.20 is: 251,728.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,985.60 : 253,478.40 = 167,819.20 : x
  2. Step 2: Convert to fraction form
    168,985.60/253,478.40 = 167,819.20/x
  3. Step 3: Cross multiply
    168,985.60x = 253,478.40 × 167,819.20
  4. Step 4: Simplify right side
    168,985.60x = 42,538,542,305.28
  5. Step 5: Solve for x
    x = 42,538,542,305.28/168,985.60
  6. Step 6: Final answer
    x = 251,728.80

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