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Finding the Fourth Proportional to 354,467.20, 531,518.40 and 105,116.80

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Solution

The fourth proportional to 354,467.20, 531,518.40 and 105,116.80 is: 157,621.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,467.20 : 531,518.40 = 105,116.80 : x
  2. Step 2: Convert to fraction form
    354,467.20/531,518.40 = 105,116.80/x
  3. Step 3: Cross multiply
    354,467.20x = 531,518.40 × 105,116.80
  4. Step 4: Simplify right side
    354,467.20x = 55,871,513,349.12
  5. Step 5: Solve for x
    x = 55,871,513,349.12/354,467.20
  6. Step 6: Final answer
    x = 157,621.11

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