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Finding the Fourth Proportional to 70,157.52, 105,068.16 and 51,131.16

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Solution

The fourth proportional to 70,157.52, 105,068.16 and 51,131.16 is: 76,574.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,157.52 : 105,068.16 = 51,131.16 : x
  2. Step 2: Convert to fraction form
    70,157.52/105,068.16 = 51,131.16/x
  3. Step 3: Cross multiply
    70,157.52x = 105,068.16 × 51,131.16
  4. Step 4: Simplify right side
    70,157.52x = 5,372,256,899.87
  5. Step 5: Solve for x
    x = 5,372,256,899.87/70,157.52
  6. Step 6: Final answer
    x = 76,574.21

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