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Finding the Fourth Proportional to 269,880.30, 404,820.45 and 82,891.80

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Solution

The fourth proportional to 269,880.30, 404,820.45 and 82,891.80 is: 124,337.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,880.30 : 404,820.45 = 82,891.80 : x
  2. Step 2: Convert to fraction form
    269,880.30/404,820.45 = 82,891.80/x
  3. Step 3: Cross multiply
    269,880.30x = 404,820.45 × 82,891.80
  4. Step 4: Simplify right side
    269,880.30x = 33,556,295,777.31
  5. Step 5: Solve for x
    x = 33,556,295,777.31/269,880.30
  6. Step 6: Final answer
    x = 124,337.70

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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.