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Finding the Fourth Proportional to 220,817.60, 331,226.40 and 132,025.40

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Solution

The fourth proportional to 220,817.60, 331,226.40 and 132,025.40 is: 198,038.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,817.60 : 331,226.40 = 132,025.40 : x
  2. Step 2: Convert to fraction form
    220,817.60/331,226.40 = 132,025.40/x
  3. Step 3: Cross multiply
    220,817.60x = 331,226.40 × 132,025.40
  4. Step 4: Simplify right side
    220,817.60x = 43,730,297,950.56
  5. Step 5: Solve for x
    x = 43,730,297,950.56/220,817.60
  6. Step 6: Final answer
    x = 198,038.10

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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.