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Finding the Fourth Proportional to 206,355.24, 308,995.26 and 112,668.84

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Solution

The fourth proportional to 206,355.24, 308,995.26 and 112,668.84 is: 168,709.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,355.24 : 308,995.26 = 112,668.84 : x
  2. Step 2: Convert to fraction form
    206,355.24/308,995.26 = 112,668.84/x
  3. Step 3: Cross multiply
    206,355.24x = 308,995.26 × 112,668.84
  4. Step 4: Simplify right side
    206,355.24x = 34,814,137,509.70
  5. Step 5: Solve for x
    x = 34,814,137,509.70/206,355.24
  6. Step 6: Final answer
    x = 168,709.73

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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.