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Finding the Fourth Proportional to 272,195.40, 407,855.70 and 227,580.60

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Solution

The fourth proportional to 272,195.40, 407,855.70 and 227,580.60 is: 341,005.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,195.40 : 407,855.70 = 227,580.60 : x
  2. Step 2: Convert to fraction form
    272,195.40/407,855.70 = 227,580.60/x
  3. Step 3: Cross multiply
    272,195.40x = 407,855.70 × 227,580.60
  4. Step 4: Simplify right side
    272,195.40x = 92,820,044,919.42
  5. Step 5: Solve for x
    x = 92,820,044,919.42/272,195.40
  6. Step 6: Final answer
    x = 341,005.19

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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.