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Finding the Fourth Proportional to 108,635.60, 162,953.40 and 87,899.60

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Solution

The fourth proportional to 108,635.60, 162,953.40 and 87,899.60 is: 131,849.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,635.60 : 162,953.40 = 87,899.60 : x
  2. Step 2: Convert to fraction form
    108,635.60/162,953.40 = 87,899.60/x
  3. Step 3: Cross multiply
    108,635.60x = 162,953.40 × 87,899.60
  4. Step 4: Simplify right side
    108,635.60x = 14,323,538,678.64
  5. Step 5: Solve for x
    x = 14,323,538,678.64/108,635.60
  6. Step 6: Final answer
    x = 131,849.40

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