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Finding the Fourth Proportional to 225,814.80, 338,722.20 and 113,840.40

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Solution

The fourth proportional to 225,814.80, 338,722.20 and 113,840.40 is: 170,760.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,814.80 : 338,722.20 = 113,840.40 : x
  2. Step 2: Convert to fraction form
    225,814.80/338,722.20 = 113,840.40/x
  3. Step 3: Cross multiply
    225,814.80x = 338,722.20 × 113,840.40
  4. Step 4: Simplify right side
    225,814.80x = 38,560,270,736.88
  5. Step 5: Solve for x
    x = 38,560,270,736.88/225,814.80
  6. Step 6: Final answer
    x = 170,760.60

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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.