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Finding the Fourth Proportional to 120,673.01, 166,526.21 and 66,956.87

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Solution

The fourth proportional to 120,673.01, 166,526.21 and 66,956.87 is: 92,399.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,673.01 : 166,526.21 = 66,956.87 : x
  2. Step 2: Convert to fraction form
    120,673.01/166,526.21 = 66,956.87/x
  3. Step 3: Cross multiply
    120,673.01x = 166,526.21 × 66,956.87
  4. Step 4: Simplify right side
    120,673.01x = 11,150,073,794.56
  5. Step 5: Solve for x
    x = 11,150,073,794.56/120,673.01
  6. Step 6: Final answer
    x = 92,399.07

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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.