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Finding the Fourth Proportional to 167,000.70, 250,695.45 and 100,515.90

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Solution

The fourth proportional to 167,000.70, 250,695.45 and 100,515.90 is: 150,890.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,000.70 : 250,695.45 = 100,515.90 : x
  2. Step 2: Convert to fraction form
    167,000.70/250,695.45 = 100,515.90/x
  3. Step 3: Cross multiply
    167,000.70x = 250,695.45 × 100,515.90
  4. Step 4: Simplify right side
    167,000.70x = 25,198,878,782.66
  5. Step 5: Solve for x
    x = 25,198,878,782.66/167,000.70
  6. Step 6: Final answer
    x = 150,890.86

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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.