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Finding the Fourth Proportional to 356,992.52, 535,648.70 and 194,939.87

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Solution

The fourth proportional to 356,992.52, 535,648.70 and 194,939.87 is: 292,497.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,992.52 : 535,648.70 = 194,939.87 : x
  2. Step 2: Convert to fraction form
    356,992.52/535,648.70 = 194,939.87/x
  3. Step 3: Cross multiply
    356,992.52x = 535,648.70 × 194,939.87
  4. Step 4: Simplify right side
    356,992.52x = 104,419,284,290.73
  5. Step 5: Solve for x
    x = 104,419,284,290.73/356,992.52
  6. Step 6: Final answer
    x = 292,497.13

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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.