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Finding the Fourth Proportional to 350,712.33, 525,939.30 and 126,012.66

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Solution

The fourth proportional to 350,712.33, 525,939.30 and 126,012.66 is: 188,972.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,712.33 : 525,939.30 = 126,012.66 : x
  2. Step 2: Convert to fraction form
    350,712.33/525,939.30 = 126,012.66/x
  3. Step 3: Cross multiply
    350,712.33x = 525,939.30 × 126,012.66
  4. Step 4: Simplify right side
    350,712.33x = 66,275,010,191.54
  5. Step 5: Solve for x
    x = 66,275,010,191.54/350,712.33
  6. Step 6: Final answer
    x = 188,972.57

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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.