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Finding the Fourth Proportional to 173,869.80, 260,804.70 and 80,375.55

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Solution

The fourth proportional to 173,869.80, 260,804.70 and 80,375.55 is: 120,563.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,869.80 : 260,804.70 = 80,375.55 : x
  2. Step 2: Convert to fraction form
    173,869.80/260,804.70 = 80,375.55/x
  3. Step 3: Cross multiply
    173,869.80x = 260,804.70 × 80,375.55
  4. Step 4: Simplify right side
    173,869.80x = 20,962,321,205.09
  5. Step 5: Solve for x
    x = 20,962,321,205.09/173,869.80
  6. Step 6: Final answer
    x = 120,563.33

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1.5x scale

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.