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Finding the Fourth Proportional to 269,764.60, 404,646.90 and 82,751.80

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Solution

The fourth proportional to 269,764.60, 404,646.90 and 82,751.80 is: 124,127.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,764.60 : 404,646.90 = 82,751.80 : x
  2. Step 2: Convert to fraction form
    269,764.60/404,646.90 = 82,751.80/x
  3. Step 3: Cross multiply
    269,764.60x = 404,646.90 × 82,751.80
  4. Step 4: Simplify right side
    269,764.60x = 33,485,259,339.42
  5. Step 5: Solve for x
    x = 33,485,259,339.42/269,764.60
  6. Step 6: Final answer
    x = 124,127.70

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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.