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Finding the Fourth Proportional to 163,162.89, 225,188.24 and 90,582.44

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Solution

The fourth proportional to 163,162.89, 225,188.24 and 90,582.44 is: 125,016.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,162.89 : 225,188.24 = 90,582.44 : x
  2. Step 2: Convert to fraction form
    163,162.89/225,188.24 = 90,582.44/x
  3. Step 3: Cross multiply
    163,162.89x = 225,188.24 × 90,582.44
  4. Step 4: Simplify right side
    163,162.89x = 20,398,098,659.65
  5. Step 5: Solve for x
    x = 20,398,098,659.65/163,162.89
  6. Step 6: Final answer
    x = 125,016.78

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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.