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Finding the Fourth Proportional to 210,613.68, 316,200.78 and 110,843.94

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Solution

The fourth proportional to 210,613.68, 316,200.78 and 110,843.94 is: 166,413.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,613.68 : 316,200.78 = 110,843.94 : x
  2. Step 2: Convert to fraction form
    210,613.68/316,200.78 = 110,843.94/x
  3. Step 3: Cross multiply
    210,613.68x = 316,200.78 × 110,843.94
  4. Step 4: Simplify right side
    210,613.68x = 35,048,940,286.27
  5. Step 5: Solve for x
    x = 35,048,940,286.27/210,613.68
  6. Step 6: Final answer
    x = 166,413.41

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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.