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Finding the Fourth Proportional to 104,540.50, 156,830.19 and 49,136.50

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Solution

The fourth proportional to 104,540.50, 156,830.19 and 49,136.50 is: 73,713.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,540.50 : 156,830.19 = 49,136.50 : x
  2. Step 2: Convert to fraction form
    104,540.50/156,830.19 = 49,136.50/x
  3. Step 3: Cross multiply
    104,540.50x = 156,830.19 × 49,136.50
  4. Step 4: Simplify right side
    104,540.50x = 7,706,086,630.94
  5. Step 5: Solve for x
    x = 7,706,086,630.94/104,540.50
  6. Step 6: Final answer
    x = 73,713.89

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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.