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Finding the Fourth Proportional to 80,605.01, 120,765.15 and 48,950.48

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Solution

The fourth proportional to 80,605.01, 120,765.15 and 48,950.48 is: 73,339.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,605.01 : 120,765.15 = 48,950.48 : x
  2. Step 2: Convert to fraction form
    80,605.01/120,765.15 = 48,950.48/x
  3. Step 3: Cross multiply
    80,605.01x = 120,765.15 × 48,950.48
  4. Step 4: Simplify right side
    80,605.01x = 5,911,512,361.68
  5. Step 5: Solve for x
    x = 5,911,512,361.68/80,605.01
  6. Step 6: Final answer
    x = 73,339.26

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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.