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Finding the Fourth Proportional to 175,212.60, 262,910.70 and 80,471.40

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Solution

The fourth proportional to 175,212.60, 262,910.70 and 80,471.40 is: 120,749.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,212.60 : 262,910.70 = 80,471.40 : x
  2. Step 2: Convert to fraction form
    175,212.60/262,910.70 = 80,471.40/x
  3. Step 3: Cross multiply
    175,212.60x = 262,910.70 × 80,471.40
  4. Step 4: Simplify right side
    175,212.60x = 21,156,792,103.98
  5. Step 5: Solve for x
    x = 21,156,792,103.98/175,212.60
  6. Step 6: Final answer
    x = 120,749.26

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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.