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Finding the Fourth Proportional to 167,864.31, 251,704.44 and 66,559.77

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Solution

The fourth proportional to 167,864.31, 251,704.44 and 66,559.77 is: 99,803.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,864.31 : 251,704.44 = 66,559.77 : x
  2. Step 2: Convert to fraction form
    167,864.31/251,704.44 = 66,559.77/x
  3. Step 3: Cross multiply
    167,864.31x = 251,704.44 × 66,559.77
  4. Step 4: Simplify right side
    167,864.31x = 16,753,389,634.38
  5. Step 5: Solve for x
    x = 16,753,389,634.38/167,864.31
  6. Step 6: Final answer
    x = 99,803.17

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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.