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Finding the Fourth Proportional to 492,172.48, 738,320.23 and 192,614.33

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Solution

The fourth proportional to 492,172.48, 738,320.23 and 192,614.33 is: 288,945.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,172.48 : 738,320.23 = 192,614.33 : x
  2. Step 2: Convert to fraction form
    492,172.48/738,320.23 = 192,614.33/x
  3. Step 3: Cross multiply
    492,172.48x = 738,320.23 × 192,614.33
  4. Step 4: Simplify right side
    492,172.48x = 142,211,058,513.46
  5. Step 5: Solve for x
    x = 142,211,058,513.46/492,172.48
  6. Step 6: Final answer
    x = 288,945.57

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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.