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Finding the Fourth Proportional to 170,021.70, 255,046.80 and 51,694.07

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Solution

The fourth proportional to 170,021.70, 255,046.80 and 51,694.07 is: 77,545.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,021.70 : 255,046.80 = 51,694.07 : x
  2. Step 2: Convert to fraction form
    170,021.70/255,046.80 = 51,694.07/x
  3. Step 3: Cross multiply
    170,021.70x = 255,046.80 × 51,694.07
  4. Step 4: Simplify right side
    170,021.70x = 13,184,405,857.24
  5. Step 5: Solve for x
    x = 13,184,405,857.24/170,021.70
  6. Step 6: Final answer
    x = 77,545.43

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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.