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Finding the Fourth Proportional to 220,970.64, 304,939.56 and 120,368.64

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Solution

The fourth proportional to 220,970.64, 304,939.56 and 120,368.64 is: 166,108.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,970.64 : 304,939.56 = 120,368.64 : x
  2. Step 2: Convert to fraction form
    220,970.64/304,939.56 = 120,368.64/x
  3. Step 3: Cross multiply
    220,970.64x = 304,939.56 × 120,368.64
  4. Step 4: Simplify right side
    220,970.64x = 36,705,160,119.40
  5. Step 5: Solve for x
    x = 36,705,160,119.40/220,970.64
  6. Step 6: Final answer
    x = 166,108.77

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