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Finding the Fourth Proportional to 129,369.66, 194,040.84 and 34,609.41

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Solution

The fourth proportional to 129,369.66, 194,040.84 and 34,609.41 is: 51,910.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,369.66 : 194,040.84 = 34,609.41 : x
  2. Step 2: Convert to fraction form
    129,369.66/194,040.84 = 34,609.41/x
  3. Step 3: Cross multiply
    129,369.66x = 194,040.84 × 34,609.41
  4. Step 4: Simplify right side
    129,369.66x = 6,715,638,988.30
  5. Step 5: Solve for x
    x = 6,715,638,988.30/129,369.66
  6. Step 6: Final answer
    x = 51,910.46

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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.