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Finding the Fourth Proportional to 161,336.79, 222,626.72 and 89,712.54

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Solution

The fourth proportional to 161,336.79, 222,626.72 and 89,712.54 is: 123,793.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,336.79 : 222,626.72 = 89,712.54 : x
  2. Step 2: Convert to fraction form
    161,336.79/222,626.72 = 89,712.54/x
  3. Step 3: Cross multiply
    161,336.79x = 222,626.72 × 89,712.54
  4. Step 4: Simplify right side
    161,336.79x = 19,972,408,747.35
  5. Step 5: Solve for x
    x = 19,972,408,747.35/161,336.79
  6. Step 6: Final answer
    x = 123,793.27

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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.