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Finding the Fourth Proportional to 126,727.20, 190,090.80 and 64,519.20

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Solution

The fourth proportional to 126,727.20, 190,090.80 and 64,519.20 is: 96,778.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,727.20 : 190,090.80 = 64,519.20 : x
  2. Step 2: Convert to fraction form
    126,727.20/190,090.80 = 64,519.20/x
  3. Step 3: Cross multiply
    126,727.20x = 190,090.80 × 64,519.20
  4. Step 4: Simplify right side
    126,727.20x = 12,264,506,343.36
  5. Step 5: Solve for x
    x = 12,264,506,343.36/126,727.20
  6. Step 6: Final answer
    x = 96,778.80

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