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Finding the Fourth Proportional to 236,940.49, 355,472.99 and 85,152.90

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Solution

The fourth proportional to 236,940.49, 355,472.99 and 85,152.90 is: 127,751.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,940.49 : 355,472.99 = 85,152.90 : x
  2. Step 2: Convert to fraction form
    236,940.49/355,472.99 = 85,152.90/x
  3. Step 3: Cross multiply
    236,940.49x = 355,472.99 × 85,152.90
  4. Step 4: Simplify right side
    236,940.49x = 30,269,553,767.04
  5. Step 5: Solve for x
    x = 30,269,553,767.04/236,940.49
  6. Step 6: Final answer
    x = 127,751.71

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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.