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Finding the Fourth Proportional to 167,668.88, 251,519.76 and 61,081.80

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Solution

The fourth proportional to 167,668.88, 251,519.76 and 61,081.80 is: 91,628.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,668.88 : 251,519.76 = 61,081.80 : x
  2. Step 2: Convert to fraction form
    167,668.88/251,519.76 = 61,081.80/x
  3. Step 3: Cross multiply
    167,668.88x = 251,519.76 × 61,081.80
  4. Step 4: Simplify right side
    167,668.88x = 15,363,279,676.37
  5. Step 5: Solve for x
    x = 15,363,279,676.37/167,668.88
  6. Step 6: Final answer
    x = 91,628.69

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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.