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Finding the Fourth Proportional to 103,328.40, 154,992.60 and 47,168.40

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Solution

The fourth proportional to 103,328.40, 154,992.60 and 47,168.40 is: 70,752.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,328.40 : 154,992.60 = 47,168.40 : x
  2. Step 2: Convert to fraction form
    103,328.40/154,992.60 = 47,168.40/x
  3. Step 3: Cross multiply
    103,328.40x = 154,992.60 × 47,168.40
  4. Step 4: Simplify right side
    103,328.40x = 7,310,752,953.84
  5. Step 5: Solve for x
    x = 7,310,752,953.84/103,328.40
  6. Step 6: Final answer
    x = 70,752.60

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