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Finding the Fourth Proportional to 169,121.71, 233,375.11 and 93,668.59

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Solution

The fourth proportional to 169,121.71, 233,375.11 and 93,668.59 is: 129,255.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,121.71 : 233,375.11 = 93,668.59 : x
  2. Step 2: Convert to fraction form
    169,121.71/233,375.11 = 93,668.59/x
  3. Step 3: Cross multiply
    169,121.71x = 233,375.11 × 93,668.59
  4. Step 4: Simplify right side
    169,121.71x = 21,859,917,494.79
  5. Step 5: Solve for x
    x = 21,859,917,494.79/169,121.71
  6. Step 6: Final answer
    x = 129,255.54

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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.