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Finding the Fourth Proportional to 207,766.09, 311,649.15 and 49,994.56

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Solution

The fourth proportional to 207,766.09, 311,649.15 and 49,994.56 is: 74,991.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,766.09 : 311,649.15 = 49,994.56 : x
  2. Step 2: Convert to fraction form
    207,766.09/311,649.15 = 49,994.56/x
  3. Step 3: Cross multiply
    207,766.09x = 311,649.15 × 49,994.56
  4. Step 4: Simplify right side
    207,766.09x = 15,580,762,128.62
  5. Step 5: Solve for x
    x = 15,580,762,128.62/207,766.09
  6. Step 6: Final answer
    x = 74,991.84

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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.