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Finding the Fourth Proportional to 166,709.07, 250,605.50 and 133,789.86

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Solution

The fourth proportional to 166,709.07, 250,605.50 and 133,789.86 is: 201,119.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,709.07 : 250,605.50 = 133,789.86 : x
  2. Step 2: Convert to fraction form
    166,709.07/250,605.50 = 133,789.86/x
  3. Step 3: Cross multiply
    166,709.07x = 250,605.50 × 133,789.86
  4. Step 4: Simplify right side
    166,709.07x = 33,528,474,091.28
  5. Step 5: Solve for x
    x = 33,528,474,091.28/166,709.07
  6. Step 6: Final answer
    x = 201,119.68

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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.