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Finding the Fourth Proportional to 165,604.60, 248,439.30 and 70,834.60

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Solution

The fourth proportional to 165,604.60, 248,439.30 and 70,834.60 is: 106,265.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,604.60 : 248,439.30 = 70,834.60 : x
  2. Step 2: Convert to fraction form
    165,604.60/248,439.30 = 70,834.60/x
  3. Step 3: Cross multiply
    165,604.60x = 248,439.30 × 70,834.60
  4. Step 4: Simplify right side
    165,604.60x = 17,598,098,439.78
  5. Step 5: Solve for x
    x = 17,598,098,439.78/165,604.60
  6. Step 6: Final answer
    x = 106,265.76

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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.