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Finding the Fourth Proportional to 165,764.40, 248,776.20 and 77,028.90

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Solution

The fourth proportional to 165,764.40, 248,776.20 and 77,028.90 is: 115,603.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,764.40 : 248,776.20 = 77,028.90 : x
  2. Step 2: Convert to fraction form
    165,764.40/248,776.20 = 77,028.90/x
  3. Step 3: Cross multiply
    165,764.40x = 248,776.20 × 77,028.90
  4. Step 4: Simplify right side
    165,764.40x = 19,162,957,032.18
  5. Step 5: Solve for x
    x = 19,162,957,032.18/165,764.40
  6. Step 6: Final answer
    x = 115,603.57

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