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Finding the Fourth Proportional to 117,093.65, 161,593.43 and 66,115.44

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Solution

The fourth proportional to 117,093.65, 161,593.43 and 66,115.44 is: 91,241.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,093.65 : 161,593.43 = 66,115.44 : x
  2. Step 2: Convert to fraction form
    117,093.65/161,593.43 = 66,115.44/x
  3. Step 3: Cross multiply
    117,093.65x = 161,593.43 × 66,115.44
  4. Step 4: Simplify right side
    117,093.65x = 10,683,820,766.88
  5. Step 5: Solve for x
    x = 10,683,820,766.88/117,093.65
  6. Step 6: Final answer
    x = 91,241.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.