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Finding the Fourth Proportional to 80,148.98, 120,247.53 and 23,990.91

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Solution

The fourth proportional to 80,148.98, 120,247.53 and 23,990.91 is: 35,993.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,148.98 : 120,247.53 = 23,990.91 : x
  2. Step 2: Convert to fraction form
    80,148.98/120,247.53 = 23,990.91/x
  3. Step 3: Cross multiply
    80,148.98x = 120,247.53 × 23,990.91
  4. Step 4: Simplify right side
    80,148.98x = 2,884,847,669.95
  5. Step 5: Solve for x
    x = 2,884,847,669.95/80,148.98
  6. Step 6: Final answer
    x = 35,993.57

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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.