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Finding the Fourth Proportional to 165,716.22, 228,690.90 and 90,264.72

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Solution

The fourth proportional to 165,716.22, 228,690.90 and 90,264.72 is: 124,566.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,716.22 : 228,690.90 = 90,264.72 : x
  2. Step 2: Convert to fraction form
    165,716.22/228,690.90 = 90,264.72/x
  3. Step 3: Cross multiply
    165,716.22x = 228,690.90 × 90,264.72
  4. Step 4: Simplify right side
    165,716.22x = 20,642,720,055.05
  5. Step 5: Solve for x
    x = 20,642,720,055.05/165,716.22
  6. Step 6: Final answer
    x = 124,566.68

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