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Finding the Fourth Proportional to 79,719.15, 119,357.28 and 40,156.32

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Solution

The fourth proportional to 79,719.15, 119,357.28 and 40,156.32 is: 60,122.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,719.15 : 119,357.28 = 40,156.32 : x
  2. Step 2: Convert to fraction form
    79,719.15/119,357.28 = 40,156.32/x
  3. Step 3: Cross multiply
    79,719.15x = 119,357.28 × 40,156.32
  4. Step 4: Simplify right side
    79,719.15x = 4,792,949,130.01
  5. Step 5: Solve for x
    x = 4,792,949,130.01/79,719.15
  6. Step 6: Final answer
    x = 60,122.93

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