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Finding the Fourth Proportional to 161,363.97, 222,679.11 and 89,742.45

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Solution

The fourth proportional to 161,363.97, 222,679.11 and 89,742.45 is: 123,842.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,363.97 : 222,679.11 = 89,742.45 : x
  2. Step 2: Convert to fraction form
    161,363.97/222,679.11 = 89,742.45/x
  3. Step 3: Cross multiply
    161,363.97x = 222,679.11 × 89,742.45
  4. Step 4: Simplify right side
    161,363.97x = 19,983,770,066.80
  5. Step 5: Solve for x
    x = 19,983,770,066.80/161,363.97
  6. Step 6: Final answer
    x = 123,842.83

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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.