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Finding the Fourth Proportional to 207,662.33, 311,478.92 and 118,636.85

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Solution

The fourth proportional to 207,662.33, 311,478.92 and 118,636.85 is: 177,946.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,662.33 : 311,478.92 = 118,636.85 : x
  2. Step 2: Convert to fraction form
    207,662.33/311,478.92 = 118,636.85/x
  3. Step 3: Cross multiply
    207,662.33x = 311,478.92 × 118,636.85
  4. Step 4: Simplify right side
    207,662.33x = 36,952,878,540.60
  5. Step 5: Solve for x
    x = 36,952,878,540.60/207,662.33
  6. Step 6: Final answer
    x = 177,946.95

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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.