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Finding the Fourth Proportional to 120,670.41, 166,523.01 and 66,954.51

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Solution

The fourth proportional to 120,670.41, 166,523.01 and 66,954.51 is: 92,396.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,670.41 : 166,523.01 = 66,954.51 : x
  2. Step 2: Convert to fraction form
    120,670.41/166,523.01 = 66,954.51/x
  3. Step 3: Cross multiply
    120,670.41x = 166,523.01 × 66,954.51
  4. Step 4: Simplify right side
    120,670.41x = 11,149,466,538.28
  5. Step 5: Solve for x
    x = 11,149,466,538.28/120,670.41
  6. Step 6: Final answer
    x = 92,396.03

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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.