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Finding the Fourth Proportional to 171,937.70, 257,906.55 and 157,163.30

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Solution

The fourth proportional to 171,937.70, 257,906.55 and 157,163.30 is: 235,744.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,937.70 : 257,906.55 = 157,163.30 : x
  2. Step 2: Convert to fraction form
    171,937.70/257,906.55 = 157,163.30/x
  3. Step 3: Cross multiply
    171,937.70x = 257,906.55 × 157,163.30
  4. Step 4: Simplify right side
    171,937.70x = 40,533,444,489.62
  5. Step 5: Solve for x
    x = 40,533,444,489.62/171,937.70
  6. Step 6: Final answer
    x = 235,744.95

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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.