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Finding the Fourth Proportional to 117,225.90, 175,579.65 and 90,722.70

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Solution

The fourth proportional to 117,225.90, 175,579.65 and 90,722.70 is: 135,883.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,225.90 : 175,579.65 = 90,722.70 : x
  2. Step 2: Convert to fraction form
    117,225.90/175,579.65 = 90,722.70/x
  3. Step 3: Cross multiply
    117,225.90x = 175,579.65 × 90,722.70
  4. Step 4: Simplify right side
    117,225.90x = 15,929,059,913.06
  5. Step 5: Solve for x
    x = 15,929,059,913.06/117,225.90
  6. Step 6: Final answer
    x = 135,883.45

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