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Finding the Fourth Proportional to 356,859.72, 492,472.71 and 195,713.37

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Solution

The fourth proportional to 356,859.72, 492,472.71 and 195,713.37 is: 270,087.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,859.72 : 492,472.71 = 195,713.37 : x
  2. Step 2: Convert to fraction form
    356,859.72/492,472.71 = 195,713.37/x
  3. Step 3: Cross multiply
    356,859.72x = 492,472.71 × 195,713.37
  4. Step 4: Simplify right side
    356,859.72x = 96,383,493,707.13
  5. Step 5: Solve for x
    x = 96,383,493,707.13/356,859.72
  6. Step 6: Final answer
    x = 270,087.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.