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Finding the Fourth Proportional to 105,561.20, 158,341.80 and 100,895.60

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Solution

The fourth proportional to 105,561.20, 158,341.80 and 100,895.60 is: 151,343.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,561.20 : 158,341.80 = 100,895.60 : x
  2. Step 2: Convert to fraction form
    105,561.20/158,341.80 = 100,895.60/x
  3. Step 3: Cross multiply
    105,561.20x = 158,341.80 × 100,895.60
  4. Step 4: Simplify right side
    105,561.20x = 15,975,990,916.08
  5. Step 5: Solve for x
    x = 15,975,990,916.08/105,561.20
  6. Step 6: Final answer
    x = 151,343.40

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