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Finding the Fourth Proportional to 166,087.70, 231,997.90 and 166,087.70

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Solution

The fourth proportional to 166,087.70, 231,997.90 and 166,087.70 is: 231,997.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,087.70 : 231,997.90 = 166,087.70 : x
  2. Step 2: Convert to fraction form
    166,087.70/231,997.90 = 166,087.70/x
  3. Step 3: Cross multiply
    166,087.70x = 231,997.90 × 166,087.70
  4. Step 4: Simplify right side
    166,087.70x = 38,531,997,615.83
  5. Step 5: Solve for x
    x = 38,531,997,615.83/166,087.70
  6. Step 6: Final answer
    x = 231,997.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.