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Finding the Fourth Proportional to 216,604.16, 298,912.92 and 121,110.56

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Solution

The fourth proportional to 216,604.16, 298,912.92 and 121,110.56 is: 167,132.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,604.16 : 298,912.92 = 121,110.56 : x
  2. Step 2: Convert to fraction form
    216,604.16/298,912.92 = 121,110.56/x
  3. Step 3: Cross multiply
    216,604.16x = 298,912.92 × 121,110.56
  4. Step 4: Simplify right side
    216,604.16x = 36,201,511,132.44
  5. Step 5: Solve for x
    x = 36,201,511,132.44/216,604.16
  6. Step 6: Final answer
    x = 167,132.11

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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.