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Finding the Fourth Proportional to 157,719.40, 236,579.10 and 74,775.40

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Solution

The fourth proportional to 157,719.40, 236,579.10 and 74,775.40 is: 112,163.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,719.40 : 236,579.10 = 74,775.40 : x
  2. Step 2: Convert to fraction form
    157,719.40/236,579.10 = 74,775.40/x
  3. Step 3: Cross multiply
    157,719.40x = 236,579.10 × 74,775.40
  4. Step 4: Simplify right side
    157,719.40x = 17,690,296,834.14
  5. Step 5: Solve for x
    x = 17,690,296,834.14/157,719.40
  6. Step 6: Final answer
    x = 112,163.10

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