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Finding the Fourth Proportional to 230,362.40, 345,520.92 and 80,575.04

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Solution

The fourth proportional to 230,362.40, 345,520.92 and 80,575.04 is: 120,854.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,362.40 : 345,520.92 = 80,575.04 : x
  2. Step 2: Convert to fraction form
    230,362.40/345,520.92 = 80,575.04/x
  3. Step 3: Cross multiply
    230,362.40x = 345,520.92 × 80,575.04
  4. Step 4: Simplify right side
    230,362.40x = 27,840,361,949.84
  5. Step 5: Solve for x
    x = 27,840,361,949.84/230,362.40
  6. Step 6: Final answer
    x = 120,854.63

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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.