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Finding the Fourth Proportional to 231,706.20, 347,300.10 and 98,563.80

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Solution

The fourth proportional to 231,706.20, 347,300.10 and 98,563.80 is: 147,735.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,706.20 : 347,300.10 = 98,563.80 : x
  2. Step 2: Convert to fraction form
    231,706.20/347,300.10 = 98,563.80/x
  3. Step 3: Cross multiply
    231,706.20x = 347,300.10 × 98,563.80
  4. Step 4: Simplify right side
    231,706.20x = 34,231,217,596.38
  5. Step 5: Solve for x
    x = 34,231,217,596.38/231,706.20
  6. Step 6: Final answer
    x = 147,735.44

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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.