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Finding the Fourth Proportional to 161,434.62, 222,759.72 and 89,809.56

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Solution

The fourth proportional to 161,434.62, 222,759.72 and 89,809.56 is: 123,926.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,434.62 : 222,759.72 = 89,809.56 : x
  2. Step 2: Convert to fraction form
    161,434.62/222,759.72 = 89,809.56/x
  3. Step 3: Cross multiply
    161,434.62x = 222,759.72 × 89,809.56
  4. Step 4: Simplify right side
    161,434.62x = 20,005,952,438.92
  5. Step 5: Solve for x
    x = 20,005,952,438.92/161,434.62
  6. Step 6: Final answer
    x = 123,926.04

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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.