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Finding the Fourth Proportional to 161,222.88, 222,486.40 and 89,604.96

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Solution

The fourth proportional to 161,222.88, 222,486.40 and 89,604.96 is: 123,654.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,222.88 : 222,486.40 = 89,604.96 : x
  2. Step 2: Convert to fraction form
    161,222.88/222,486.40 = 89,604.96/x
  3. Step 3: Cross multiply
    161,222.88x = 222,486.40 × 89,604.96
  4. Step 4: Simplify right side
    161,222.88x = 19,935,884,972.54
  5. Step 5: Solve for x
    x = 19,935,884,972.54/161,222.88
  6. Step 6: Final answer
    x = 123,654.19

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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.