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Finding the Fourth Proportional to 273,234.55, 409,851.83 and 155,136.55

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Solution

The fourth proportional to 273,234.55, 409,851.83 and 155,136.55 is: 232,704.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,234.55 : 409,851.83 = 155,136.55 : x
  2. Step 2: Convert to fraction form
    273,234.55/409,851.83 = 155,136.55/x
  3. Step 3: Cross multiply
    273,234.55x = 409,851.83 × 155,136.55
  4. Step 4: Simplify right side
    273,234.55x = 63,582,998,917.39
  5. Step 5: Solve for x
    x = 63,582,998,917.39/273,234.55
  6. Step 6: Final answer
    x = 232,704.83

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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.