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Finding the Fourth Proportional to 81,461.40, 122,191.96 and 22,297.56

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Solution

The fourth proportional to 81,461.40, 122,191.96 and 22,297.56 is: 33,446.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,461.40 : 122,191.96 = 22,297.56 : x
  2. Step 2: Convert to fraction form
    81,461.40/122,191.96 = 22,297.56/x
  3. Step 3: Cross multiply
    81,461.40x = 122,191.96 × 22,297.56
  4. Step 4: Simplify right side
    81,461.40x = 2,724,582,559.62
  5. Step 5: Solve for x
    x = 2,724,582,559.62/81,461.40
  6. Step 6: Final answer
    x = 33,446.30

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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.