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Finding the Fourth Proportional to 161,086.33, 241,536.88 and 66,381.88

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Solution

The fourth proportional to 161,086.33, 241,536.88 and 66,381.88 is: 99,534.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,086.33 : 241,536.88 = 66,381.88 : x
  2. Step 2: Convert to fraction form
    161,086.33/241,536.88 = 66,381.88/x
  3. Step 3: Cross multiply
    161,086.33x = 241,536.88 × 66,381.88
  4. Step 4: Simplify right side
    161,086.33x = 16,033,672,183.73
  5. Step 5: Solve for x
    x = 16,033,672,183.73/161,086.33
  6. Step 6: Final answer
    x = 99,534.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.