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Finding the Fourth Proportional to 168,121.92, 252,188.16 and 62,920.80

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Solution

The fourth proportional to 168,121.92, 252,188.16 and 62,920.80 is: 94,383.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,121.92 : 252,188.16 = 62,920.80 : x
  2. Step 2: Convert to fraction form
    168,121.92/252,188.16 = 62,920.80/x
  3. Step 3: Cross multiply
    168,121.92x = 252,188.16 × 62,920.80
  4. Step 4: Simplify right side
    168,121.92x = 15,867,880,777.73
  5. Step 5: Solve for x
    x = 15,867,880,777.73/168,121.92
  6. Step 6: Final answer
    x = 94,383.18

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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.