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Finding the Fourth Proportional to 105,853.76, 158,784 and 53,234.48

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Solution

The fourth proportional to 105,853.76, 158,784 and 53,234.48 is: 79,853.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,853.76 : 158,784 = 53,234.48 : x
  2. Step 2: Convert to fraction form
    105,853.76/158,784 = 53,234.48/x
  3. Step 3: Cross multiply
    105,853.76x = 158,784 × 53,234.48
  4. Step 4: Simplify right side
    105,853.76x = 8,452,783,672.32
  5. Step 5: Solve for x
    x = 8,452,783,672.32/105,853.76
  6. Step 6: Final answer
    x = 79,853.41

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