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Finding the Fourth Proportional to 161,357.78, 222,670.58 and 89,736.27

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Solution

The fourth proportional to 161,357.78, 222,670.58 and 89,736.27 is: 123,834.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,357.78 : 222,670.58 = 89,736.27 : x
  2. Step 2: Convert to fraction form
    161,357.78/222,670.58 = 89,736.27/x
  3. Step 3: Cross multiply
    161,357.78x = 222,670.58 × 89,736.27
  4. Step 4: Simplify right side
    161,357.78x = 19,981,626,004.24
  5. Step 5: Solve for x
    x = 19,981,626,004.24/161,357.78
  6. Step 6: Final answer
    x = 123,834.29

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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.