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Finding the Fourth Proportional to 80,483.10, 120,627.45 and 41,019.90

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Solution

The fourth proportional to 80,483.10, 120,627.45 and 41,019.90 is: 61,480.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,483.10 : 120,627.45 = 41,019.90 : x
  2. Step 2: Convert to fraction form
    80,483.10/120,627.45 = 41,019.90/x
  3. Step 3: Cross multiply
    80,483.10x = 120,627.45 × 41,019.90
  4. Step 4: Simplify right side
    80,483.10x = 4,948,125,936.26
  5. Step 5: Solve for x
    x = 4,948,125,936.26/80,483.10
  6. Step 6: Final answer
    x = 61,480.31

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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.