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Finding the Fourth Proportional to 664,735.50, 997,103.26 and 166,099.50

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Solution

The fourth proportional to 664,735.50, 997,103.26 and 166,099.50 is: 249,149.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,735.50 : 997,103.26 = 166,099.50 : x
  2. Step 2: Convert to fraction form
    664,735.50/997,103.26 = 166,099.50/x
  3. Step 3: Cross multiply
    664,735.50x = 997,103.26 × 166,099.50
  4. Step 4: Simplify right side
    664,735.50x = 165,618,352,934.37
  5. Step 5: Solve for x
    x = 165,618,352,934.37/664,735.50
  6. Step 6: Final answer
    x = 249,149.25

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Double scale
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Similar ratio
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1.5x scale

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.