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Finding the Fourth Proportional to 171,365.85, 257,093.12 and 100,348.49

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Solution

The fourth proportional to 171,365.85, 257,093.12 and 100,348.49 is: 150,548.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,365.85 : 257,093.12 = 100,348.49 : x
  2. Step 2: Convert to fraction form
    171,365.85/257,093.12 = 100,348.49/x
  3. Step 3: Cross multiply
    171,365.85x = 257,093.12 × 100,348.49
  4. Step 4: Simplify right side
    171,365.85x = 25,798,907,274.99
  5. Step 5: Solve for x
    x = 25,798,907,274.99/171,365.85
  6. Step 6: Final answer
    x = 150,548.71

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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.