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Finding the Fourth Proportional to 177,782.80, 266,674.20 and 149,789.20

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Solution

The fourth proportional to 177,782.80, 266,674.20 and 149,789.20 is: 224,683.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,782.80 : 266,674.20 = 149,789.20 : x
  2. Step 2: Convert to fraction form
    177,782.80/266,674.20 = 149,789.20/x
  3. Step 3: Cross multiply
    177,782.80x = 266,674.20 × 149,789.20
  4. Step 4: Simplify right side
    177,782.80x = 39,944,915,078.64
  5. Step 5: Solve for x
    x = 39,944,915,078.64/177,782.80
  6. Step 6: Final answer
    x = 224,683.80

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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.