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Finding the Fourth Proportional to 120,604.73, 166,407.91 and 69,606.63

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Solution

The fourth proportional to 120,604.73, 166,407.91 and 69,606.63 is: 96,041.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,604.73 : 166,407.91 = 69,606.63 : x
  2. Step 2: Convert to fraction form
    120,604.73/166,407.91 = 69,606.63/x
  3. Step 3: Cross multiply
    120,604.73x = 166,407.91 × 69,606.63
  4. Step 4: Simplify right side
    120,604.73x = 11,583,093,646.43
  5. Step 5: Solve for x
    x = 11,583,093,646.43/120,604.73
  6. Step 6: Final answer
    x = 96,041.79

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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.