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Finding the Fourth Proportional to 78,226.88, 107,950.24 and 42,416.32

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Solution

The fourth proportional to 78,226.88, 107,950.24 and 42,416.32 is: 58,532.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,226.88 : 107,950.24 = 42,416.32 : x
  2. Step 2: Convert to fraction form
    78,226.88/107,950.24 = 42,416.32/x
  3. Step 3: Cross multiply
    78,226.88x = 107,950.24 × 42,416.32
  4. Step 4: Simplify right side
    78,226.88x = 4,578,851,923.92
  5. Step 5: Solve for x
    x = 4,578,851,923.92/78,226.88
  6. Step 6: Final answer
    x = 58,532.97

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