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Finding the Fourth Proportional to 115,503.80, 173,255.70 and 108,505.40

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Solution

The fourth proportional to 115,503.80, 173,255.70 and 108,505.40 is: 162,758.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,503.80 : 173,255.70 = 108,505.40 : x
  2. Step 2: Convert to fraction form
    115,503.80/173,255.70 = 108,505.40/x
  3. Step 3: Cross multiply
    115,503.80x = 173,255.70 × 108,505.40
  4. Step 4: Simplify right side
    115,503.80x = 18,799,179,030.78
  5. Step 5: Solve for x
    x = 18,799,179,030.78/115,503.80
  6. Step 6: Final answer
    x = 162,758.10

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