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Finding the Fourth Proportional to 265,270.92, 397,640.26 and 123,215.91

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Solution

The fourth proportional to 265,270.92, 397,640.26 and 123,215.91 is: 184,700.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,270.92 : 397,640.26 = 123,215.91 : x
  2. Step 2: Convert to fraction form
    265,270.92/397,640.26 = 123,215.91/x
  3. Step 3: Cross multiply
    265,270.92x = 397,640.26 × 123,215.91
  4. Step 4: Simplify right side
    265,270.92x = 48,995,606,488.54
  5. Step 5: Solve for x
    x = 48,995,606,488.54/265,270.92
  6. Step 6: Final answer
    x = 184,700.25

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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.