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Finding the Fourth Proportional to 80,606.80, 120,852.60 and 36,197.20

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Solution

The fourth proportional to 80,606.80, 120,852.60 and 36,197.20 is: 54,269.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,606.80 : 120,852.60 = 36,197.20 : x
  2. Step 2: Convert to fraction form
    80,606.80/120,852.60 = 36,197.20/x
  3. Step 3: Cross multiply
    80,606.80x = 120,852.60 × 36,197.20
  4. Step 4: Simplify right side
    80,606.80x = 4,374,525,732.72
  5. Step 5: Solve for x
    x = 4,374,525,732.72/80,606.80
  6. Step 6: Final answer
    x = 54,269.93

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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.