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Finding the Fourth Proportional to 192,980.95, 289,472.10 and 136,650.66

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Solution

The fourth proportional to 192,980.95, 289,472.10 and 136,650.66 is: 204,976.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,980.95 : 289,472.10 = 136,650.66 : x
  2. Step 2: Convert to fraction form
    192,980.95/289,472.10 = 136,650.66/x
  3. Step 3: Cross multiply
    192,980.95x = 289,472.10 × 136,650.66
  4. Step 4: Simplify right side
    192,980.95x = 39,556,554,029.03
  5. Step 5: Solve for x
    x = 39,556,554,029.03/192,980.95
  6. Step 6: Final answer
    x = 204,976.47

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1.5x scale

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.