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Finding the Fourth Proportional to 173,806.55, 260,644.21 and 80,246.69

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Solution

The fourth proportional to 173,806.55, 260,644.21 and 80,246.69 is: 120,339.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,806.55 : 260,644.21 = 80,246.69 : x
  2. Step 2: Convert to fraction form
    173,806.55/260,644.21 = 80,246.69/x
  3. Step 3: Cross multiply
    173,806.55x = 260,644.21 × 80,246.69
  4. Step 4: Simplify right side
    173,806.55x = 20,915,835,120.16
  5. Step 5: Solve for x
    x = 20,915,835,120.16/173,806.55
  6. Step 6: Final answer
    x = 120,339.74

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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.