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Finding the Fourth Proportional to 161,226.62, 222,491.12 and 89,605.20

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Solution

The fourth proportional to 161,226.62, 222,491.12 and 89,605.20 is: 123,654.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,226.62 : 222,491.12 = 89,605.20 : x
  2. Step 2: Convert to fraction form
    161,226.62/222,491.12 = 89,605.20/x
  3. Step 3: Cross multiply
    161,226.62x = 222,491.12 × 89,605.20
  4. Step 4: Simplify right side
    161,226.62x = 19,936,360,857.80
  5. Step 5: Solve for x
    x = 19,936,360,857.80/161,226.62
  6. Step 6: Final answer
    x = 123,654.28

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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.