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Finding the Fourth Proportional to 80,957.56, 121,446.52 and 43,466.10

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Solution

The fourth proportional to 80,957.56, 121,446.52 and 43,466.10 is: 65,204.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,957.56 : 121,446.52 = 43,466.10 : x
  2. Step 2: Convert to fraction form
    80,957.56/121,446.52 = 43,466.10/x
  3. Step 3: Cross multiply
    80,957.56x = 121,446.52 × 43,466.10
  4. Step 4: Simplify right side
    80,957.56x = 5,278,806,582.97
  5. Step 5: Solve for x
    x = 5,278,806,582.97/80,957.56
  6. Step 6: Final answer
    x = 65,204.62

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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.