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Finding the Fourth Proportional to 173,928,662.20, 260,892,993.30 and 71,640,047.80

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Solution

The fourth proportional to 173,928,662.20, 260,892,993.30 and 71,640,047.80 is: 107,460,071.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,928,662.20 : 260,892,993.30 = 71,640,047.80 : x
  2. Step 2: Convert to fraction form
    173,928,662.20/260,892,993.30 = 71,640,047.80/x
  3. Step 3: Cross multiply
    173,928,662.20x = 260,892,993.30 × 71,640,047.80
  4. Step 4: Simplify right side
    173,928,662.20x = 18,690,386,510,697,080
  5. Step 5: Solve for x
    x = 18,690,386,510,697,080/173,928,662.20
  6. Step 6: Final answer
    x = 107,460,071.70

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