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Finding the Fourth Proportional to 120,670.29, 166,525.00 and 66,955.69

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Solution

The fourth proportional to 120,670.29, 166,525.00 and 66,955.69 is: 92,398.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,670.29 : 166,525.00 = 66,955.69 : x
  2. Step 2: Convert to fraction form
    120,670.29/166,525.00 = 66,955.69/x
  3. Step 3: Cross multiply
    120,670.29x = 166,525.00 × 66,955.69
  4. Step 4: Simplify right side
    120,670.29x = 11,149,795,942.47
  5. Step 5: Solve for x
    x = 11,149,795,942.47/120,670.29
  6. Step 6: Final answer
    x = 92,398.85

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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.