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Finding the Fourth Proportional to 114,540.40, 171,769.44 and 39,640.22

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Solution

The fourth proportional to 114,540.40, 171,769.44 and 39,640.22 is: 59,446.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,540.40 : 171,769.44 = 39,640.22 : x
  2. Step 2: Convert to fraction form
    114,540.40/171,769.44 = 39,640.22/x
  3. Step 3: Cross multiply
    114,540.40x = 171,769.44 × 39,640.22
  4. Step 4: Simplify right side
    114,540.40x = 6,808,978,390.88
  5. Step 5: Solve for x
    x = 6,808,978,390.88/114,540.40
  6. Step 6: Final answer
    x = 59,446.09

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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.