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Finding the Fourth Proportional to 192,006.80, 288,010.20 and 132,717.20

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Solution

The fourth proportional to 192,006.80, 288,010.20 and 132,717.20 is: 199,075.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,006.80 : 288,010.20 = 132,717.20 : x
  2. Step 2: Convert to fraction form
    192,006.80/288,010.20 = 132,717.20/x
  3. Step 3: Cross multiply
    192,006.80x = 288,010.20 × 132,717.20
  4. Step 4: Simplify right side
    192,006.80x = 38,223,907,315.44
  5. Step 5: Solve for x
    x = 38,223,907,315.44/192,006.80
  6. Step 6: Final answer
    x = 199,075.80

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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.