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Finding the Fourth Proportional to 216,073.44, 298,145.67 and 120,579.90

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Solution

The fourth proportional to 216,073.44, 298,145.67 and 120,579.90 is: 166,380.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,073.44 : 298,145.67 = 120,579.90 : x
  2. Step 2: Convert to fraction form
    216,073.44/298,145.67 = 120,579.90/x
  3. Step 3: Cross multiply
    216,073.44x = 298,145.67 × 120,579.90
  4. Step 4: Simplify right side
    216,073.44x = 35,950,375,074.03
  5. Step 5: Solve for x
    x = 35,950,375,074.03/216,073.44
  6. Step 6: Final answer
    x = 166,380.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.