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Finding the Fourth Proportional to 167,960.85, 251,939.70 and 68,097.30

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Solution

The fourth proportional to 167,960.85, 251,939.70 and 68,097.30 is: 102,145.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,960.85 : 251,939.70 = 68,097.30 : x
  2. Step 2: Convert to fraction form
    167,960.85/251,939.70 = 68,097.30/x
  3. Step 3: Cross multiply
    167,960.85x = 251,939.70 × 68,097.30
  4. Step 4: Simplify right side
    167,960.85x = 17,156,413,332.81
  5. Step 5: Solve for x
    x = 17,156,413,332.81/167,960.85
  6. Step 6: Final answer
    x = 102,145.31

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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.