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Finding the Fourth Proportional to 100,918.02, 138,258.33 and 97,134.42

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Solution

The fourth proportional to 100,918.02, 138,258.33 and 97,134.42 is: 133,074.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,918.02 : 138,258.33 = 97,134.42 : x
  2. Step 2: Convert to fraction form
    100,918.02/138,258.33 = 97,134.42/x
  3. Step 3: Cross multiply
    100,918.02x = 138,258.33 × 97,134.42
  4. Step 4: Simplify right side
    100,918.02x = 13,429,642,694.72
  5. Step 5: Solve for x
    x = 13,429,642,694.72/100,918.02
  6. Step 6: Final answer
    x = 133,074.77

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