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Finding the Fourth Proportional to 350,678.97, 525,198.33 and 172,613.43

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Solution

The fourth proportional to 350,678.97, 525,198.33 and 172,613.43 is: 258,516.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,678.97 : 525,198.33 = 172,613.43 : x
  2. Step 2: Convert to fraction form
    350,678.97/525,198.33 = 172,613.43/x
  3. Step 3: Cross multiply
    350,678.97x = 525,198.33 × 172,613.43
  4. Step 4: Simplify right side
    350,678.97x = 90,656,285,171.57
  5. Step 5: Solve for x
    x = 90,656,285,171.57/350,678.97
  6. Step 6: Final answer
    x = 258,516.46

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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.