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Finding the Fourth Proportional to 275,215.60, 412,726.20 and 97,728.40

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Solution

The fourth proportional to 275,215.60, 412,726.20 and 97,728.40 is: 146,558.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,215.60 : 412,726.20 = 97,728.40 : x
  2. Step 2: Convert to fraction form
    275,215.60/412,726.20 = 97,728.40/x
  3. Step 3: Cross multiply
    275,215.60x = 412,726.20 × 97,728.40
  4. Step 4: Simplify right side
    275,215.60x = 40,335,071,164.08
  5. Step 5: Solve for x
    x = 40,335,071,164.08/275,215.60
  6. Step 6: Final answer
    x = 146,558.08

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