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Finding the Fourth Proportional to 116,612.40, 174,834.42 and 45,474.75

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Solution

The fourth proportional to 116,612.40, 174,834.42 and 45,474.75 is: 68,179.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,612.40 : 174,834.42 = 45,474.75 : x
  2. Step 2: Convert to fraction form
    116,612.40/174,834.42 = 45,474.75/x
  3. Step 3: Cross multiply
    116,612.40x = 174,834.42 × 45,474.75
  4. Step 4: Simplify right side
    116,612.40x = 7,950,551,540.90
  5. Step 5: Solve for x
    x = 7,950,551,540.90/116,612.40
  6. Step 6: Final answer
    x = 68,179.30

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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.