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Finding the Fourth Proportional to 117,300.52, 161,883.30 and 66,998.44

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Solution

The fourth proportional to 117,300.52, 161,883.30 and 66,998.44 is: 92,462.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,300.52 : 161,883.30 = 66,998.44 : x
  2. Step 2: Convert to fraction form
    117,300.52/161,883.30 = 66,998.44/x
  3. Step 3: Cross multiply
    117,300.52x = 161,883.30 × 66,998.44
  4. Step 4: Simplify right side
    117,300.52x = 10,845,928,562.05
  5. Step 5: Solve for x
    x = 10,845,928,562.05/117,300.52
  6. Step 6: Final answer
    x = 92,462.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.