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Finding the Fourth Proportional to 173,863.80, 260,795.70 and 80,369.55

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Solution

The fourth proportional to 173,863.80, 260,795.70 and 80,369.55 is: 120,554.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,863.80 : 260,795.70 = 80,369.55 : x
  2. Step 2: Convert to fraction form
    173,863.80/260,795.70 = 80,369.55/x
  3. Step 3: Cross multiply
    173,863.80x = 260,795.70 × 80,369.55
  4. Step 4: Simplify right side
    173,863.80x = 20,960,033,050.94
  5. Step 5: Solve for x
    x = 20,960,033,050.94/173,863.80
  6. Step 6: Final answer
    x = 120,554.33

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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.