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Finding the Fourth Proportional to 108,500.49, 149,630.76 and 74,448.90

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Solution

The fourth proportional to 108,500.49, 149,630.76 and 74,448.90 is: 102,670.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,500.49 : 149,630.76 = 74,448.90 : x
  2. Step 2: Convert to fraction form
    108,500.49/149,630.76 = 74,448.90/x
  3. Step 3: Cross multiply
    108,500.49x = 149,630.76 × 74,448.90
  4. Step 4: Simplify right side
    108,500.49x = 11,139,845,488.16
  5. Step 5: Solve for x
    x = 11,139,845,488.16/108,500.49
  6. Step 6: Final answer
    x = 102,670.92

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