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Finding the Fourth Proportional to 173,864.80, 260,797.20 and 80,370.55

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Solution

The fourth proportional to 173,864.80, 260,797.20 and 80,370.55 is: 120,555.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,864.80 : 260,797.20 = 80,370.55 : x
  2. Step 2: Convert to fraction form
    173,864.80/260,797.20 = 80,370.55/x
  3. Step 3: Cross multiply
    173,864.80x = 260,797.20 × 80,370.55
  4. Step 4: Simplify right side
    173,864.80x = 20,960,414,402.46
  5. Step 5: Solve for x
    x = 20,960,414,402.46/173,864.80
  6. Step 6: Final answer
    x = 120,555.83

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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.