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Finding the Fourth Proportional to 166,103.70, 248,923.94 and 125,543.90

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Solution

The fourth proportional to 166,103.70, 248,923.94 and 125,543.90 is: 188,140.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,103.70 : 248,923.94 = 125,543.90 : x
  2. Step 2: Convert to fraction form
    166,103.70/248,923.94 = 125,543.90/x
  3. Step 3: Cross multiply
    166,103.70x = 248,923.94 × 125,543.90
  4. Step 4: Simplify right side
    166,103.70x = 31,250,880,358.63
  5. Step 5: Solve for x
    x = 31,250,880,358.63/166,103.70
  6. Step 6: Final answer
    x = 188,140.78

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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.