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Finding the Fourth Proportional to 117,640.80, 176,461.20 and 104,421.60

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Solution

The fourth proportional to 117,640.80, 176,461.20 and 104,421.60 is: 156,632.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,640.80 : 176,461.20 = 104,421.60 : x
  2. Step 2: Convert to fraction form
    117,640.80/176,461.20 = 104,421.60/x
  3. Step 3: Cross multiply
    117,640.80x = 176,461.20 × 104,421.60
  4. Step 4: Simplify right side
    117,640.80x = 18,426,360,841.92
  5. Step 5: Solve for x
    x = 18,426,360,841.92/117,640.80
  6. Step 6: Final answer
    x = 156,632.40

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