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Finding the Fourth Proportional to 350,748.81, 525,993.30 and 126,048.69

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Solution

The fourth proportional to 350,748.81, 525,993.30 and 126,048.69 is: 189,026.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,748.81 : 525,993.30 = 126,048.69 : x
  2. Step 2: Convert to fraction form
    350,748.81/525,993.30 = 126,048.69/x
  3. Step 3: Cross multiply
    350,748.81x = 525,993.30 × 126,048.69
  4. Step 4: Simplify right side
    350,748.81x = 66,300,766,413.78
  5. Step 5: Solve for x
    x = 66,300,766,413.78/350,748.81
  6. Step 6: Final answer
    x = 189,026.35

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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.