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Finding the Fourth Proportional to 161,293.82, 222,572.86 and 89,669.48

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Solution

The fourth proportional to 161,293.82, 222,572.86 and 89,669.48 is: 123,736.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,293.82 : 222,572.86 = 89,669.48 : x
  2. Step 2: Convert to fraction form
    161,293.82/222,572.86 = 89,669.48/x
  3. Step 3: Cross multiply
    161,293.82x = 222,572.86 × 89,669.48
  4. Step 4: Simplify right side
    161,293.82x = 19,957,991,281.27
  5. Step 5: Solve for x
    x = 19,957,991,281.27/161,293.82
  6. Step 6: Final answer
    x = 123,736.87

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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.