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Finding the Fourth Proportional to 281,874.99, 422,767.47 and 82,148.67

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Solution

The fourth proportional to 281,874.99, 422,767.47 and 82,148.67 is: 123,209.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,874.99 : 422,767.47 = 82,148.67 : x
  2. Step 2: Convert to fraction form
    281,874.99/422,767.47 = 82,148.67/x
  3. Step 3: Cross multiply
    281,874.99x = 422,767.47 × 82,148.67
  4. Step 4: Simplify right side
    281,874.99x = 34,729,785,379.76
  5. Step 5: Solve for x
    x = 34,729,785,379.76/281,874.99
  6. Step 6: Final answer
    x = 123,209.89

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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.