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Finding the Fourth Proportional to 52,811.16, 79,019.88 and 52,220.64

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Solution

The fourth proportional to 52,811.16, 79,019.88 and 52,220.64 is: 78,136.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,811.16 : 79,019.88 = 52,220.64 : x
  2. Step 2: Convert to fraction form
    52,811.16/79,019.88 = 52,220.64/x
  3. Step 3: Cross multiply
    52,811.16x = 79,019.88 × 52,220.64
  4. Step 4: Simplify right side
    52,811.16x = 4,126,468,706.32
  5. Step 5: Solve for x
    x = 4,126,468,706.32/52,811.16
  6. Step 6: Final answer
    x = 78,136.30

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