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Finding the Fourth Proportional to 161,617.92, 241,979.76 and 82,561.92

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Solution

The fourth proportional to 161,617.92, 241,979.76 and 82,561.92 is: 123,614.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,617.92 : 241,979.76 = 82,561.92 : x
  2. Step 2: Convert to fraction form
    161,617.92/241,979.76 = 82,561.92/x
  3. Step 3: Cross multiply
    161,617.92x = 241,979.76 × 82,561.92
  4. Step 4: Simplify right side
    161,617.92x = 19,978,313,586.74
  5. Step 5: Solve for x
    x = 19,978,313,586.74/161,617.92
  6. Step 6: Final answer
    x = 123,614.47

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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.