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Finding the Fourth Proportional to 48,834.10, 73,251.15 and 43,390.90

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Solution

The fourth proportional to 48,834.10, 73,251.15 and 43,390.90 is: 65,086.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,834.10 : 73,251.15 = 43,390.90 : x
  2. Step 2: Convert to fraction form
    48,834.10/73,251.15 = 43,390.90/x
  3. Step 3: Cross multiply
    48,834.10x = 73,251.15 × 43,390.90
  4. Step 4: Simplify right side
    48,834.10x = 3,178,433,324.54
  5. Step 5: Solve for x
    x = 3,178,433,324.54/48,834.10
  6. Step 6: Final answer
    x = 65,086.35

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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.