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Finding the Fourth Proportional to 92,215.70, 138,323.55 and 86,675.30

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Solution

The fourth proportional to 92,215.70, 138,323.55 and 86,675.30 is: 130,012.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,215.70 : 138,323.55 = 86,675.30 : x
  2. Step 2: Convert to fraction form
    92,215.70/138,323.55 = 86,675.30/x
  3. Step 3: Cross multiply
    92,215.70x = 138,323.55 × 86,675.30
  4. Step 4: Simplify right side
    92,215.70x = 11,989,235,193.32
  5. Step 5: Solve for x
    x = 11,989,235,193.32/92,215.70
  6. Step 6: Final answer
    x = 130,012.95

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