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Finding the Fourth Proportional to 108,650.40, 162,975.60 and 82,406.40

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Solution

The fourth proportional to 108,650.40, 162,975.60 and 82,406.40 is: 123,609.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,650.40 : 162,975.60 = 82,406.40 : x
  2. Step 2: Convert to fraction form
    108,650.40/162,975.60 = 82,406.40/x
  3. Step 3: Cross multiply
    108,650.40x = 162,975.60 × 82,406.40
  4. Step 4: Simplify right side
    108,650.40x = 13,430,232,483.84
  5. Step 5: Solve for x
    x = 13,430,232,483.84/108,650.40
  6. Step 6: Final answer
    x = 123,609.60

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