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Finding the Fourth Proportional to 193,136.20, 289,121.10 and 169,808.20

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Solution

The fourth proportional to 193,136.20, 289,121.10 and 169,808.20 is: 254,199.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,136.20 : 289,121.10 = 169,808.20 : x
  2. Step 2: Convert to fraction form
    193,136.20/289,121.10 = 169,808.20/x
  3. Step 3: Cross multiply
    193,136.20x = 289,121.10 × 169,808.20
  4. Step 4: Simplify right side
    193,136.20x = 49,095,133,573.02
  5. Step 5: Solve for x
    x = 49,095,133,573.02/193,136.20
  6. Step 6: Final answer
    x = 254,199.54

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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.