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Finding the Fourth Proportional to 104,644.96, 156,963.90 and 45,480.62

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Solution

The fourth proportional to 104,644.96, 156,963.90 and 45,480.62 is: 68,219.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,644.96 : 156,963.90 = 45,480.62 : x
  2. Step 2: Convert to fraction form
    104,644.96/156,963.90 = 45,480.62/x
  3. Step 3: Cross multiply
    104,644.96x = 156,963.90 × 45,480.62
  4. Step 4: Simplify right side
    104,644.96x = 7,138,815,489.62
  5. Step 5: Solve for x
    x = 7,138,815,489.62/104,644.96
  6. Step 6: Final answer
    x = 68,219.39

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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.