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Finding the Fourth Proportional to 120,958.58, 166,932.94 and 67,248.59

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Solution

The fourth proportional to 120,958.58, 166,932.94 and 67,248.59 is: 92,808.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,958.58 : 166,932.94 = 67,248.59 : x
  2. Step 2: Convert to fraction form
    120,958.58/166,932.94 = 67,248.59/x
  3. Step 3: Cross multiply
    120,958.58x = 166,932.94 × 67,248.59
  4. Step 4: Simplify right side
    120,958.58x = 11,226,004,839.55
  5. Step 5: Solve for x
    x = 11,226,004,839.55/120,958.58
  6. Step 6: Final answer
    x = 92,808.67

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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.