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Finding the Fourth Proportional to 123,291.19, 170,132.15 and 75,538.04

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Solution

The fourth proportional to 123,291.19, 170,132.15 and 75,538.04 is: 104,236.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,291.19 : 170,132.15 = 75,538.04 : x
  2. Step 2: Convert to fraction form
    123,291.19/170,132.15 = 75,538.04/x
  3. Step 3: Cross multiply
    123,291.19x = 170,132.15 × 75,538.04
  4. Step 4: Simplify right side
    123,291.19x = 12,851,448,774.30
  5. Step 5: Solve for x
    x = 12,851,448,774.30/123,291.19
  6. Step 6: Final answer
    x = 104,236.56

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