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Finding the Fourth Proportional to 108,447.36, 161,949.36 and 107,274.48

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Solution

The fourth proportional to 108,447.36, 161,949.36 and 107,274.48 is: 160,197.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,447.36 : 161,949.36 = 107,274.48 : x
  2. Step 2: Convert to fraction form
    108,447.36/161,949.36 = 107,274.48/x
  3. Step 3: Cross multiply
    108,447.36x = 161,949.36 × 107,274.48
  4. Step 4: Simplify right side
    108,447.36x = 17,373,033,380.33
  5. Step 5: Solve for x
    x = 17,373,033,380.33/108,447.36
  6. Step 6: Final answer
    x = 160,197.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.