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Finding the Fourth Proportional to 167,570.96, 231,213.02 and 99,611.96

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Solution

The fourth proportional to 167,570.96, 231,213.02 and 99,611.96 is: 137,443.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,570.96 : 231,213.02 = 99,611.96 : x
  2. Step 2: Convert to fraction form
    167,570.96/231,213.02 = 99,611.96/x
  3. Step 3: Cross multiply
    167,570.96x = 231,213.02 × 99,611.96
  4. Step 4: Simplify right side
    167,570.96x = 23,031,582,099.72
  5. Step 5: Solve for x
    x = 23,031,582,099.72/167,570.96
  6. Step 6: Final answer
    x = 137,443.76

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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.