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Finding the Fourth Proportional to 120,600.36, 166,408.56 and 66,876.84

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Solution

The fourth proportional to 120,600.36, 166,408.56 and 66,876.84 is: 92,278.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,600.36 : 166,408.56 = 66,876.84 : x
  2. Step 2: Convert to fraction form
    120,600.36/166,408.56 = 66,876.84/x
  3. Step 3: Cross multiply
    120,600.36x = 166,408.56 × 66,876.84
  4. Step 4: Simplify right side
    120,600.36x = 11,128,878,641.75
  5. Step 5: Solve for x
    x = 11,128,878,641.75/120,600.36
  6. Step 6: Final answer
    x = 92,278.98

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