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Finding the Fourth Proportional to 171,270.70, 257,136.90 and 100,266.10

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Solution

The fourth proportional to 171,270.70, 257,136.90 and 100,266.10 is: 150,534.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,270.70 : 257,136.90 = 100,266.10 : x
  2. Step 2: Convert to fraction form
    171,270.70/257,136.90 = 100,266.10/x
  3. Step 3: Cross multiply
    171,270.70x = 257,136.90 × 100,266.10
  4. Step 4: Simplify right side
    171,270.70x = 25,782,114,129.09
  5. Step 5: Solve for x
    x = 25,782,114,129.09/171,270.70
  6. Step 6: Final answer
    x = 150,534.30

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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.