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Finding the Fourth Proportional to 117,611.80, 176,763.30 and 102,405.40

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Solution

The fourth proportional to 117,611.80, 176,763.30 and 102,405.40 is: 153,909.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,611.80 : 176,763.30 = 102,405.40 : x
  2. Step 2: Convert to fraction form
    117,611.80/176,763.30 = 102,405.40/x
  3. Step 3: Cross multiply
    117,611.80x = 176,763.30 × 102,405.40
  4. Step 4: Simplify right side
    117,611.80x = 18,101,516,441.82
  5. Step 5: Solve for x
    x = 18,101,516,441.82/117,611.80
  6. Step 6: Final answer
    x = 153,909.02

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