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Finding the Fourth Proportional to 266,119.40, 399,179.10 and 182,138.60

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Solution

The fourth proportional to 266,119.40, 399,179.10 and 182,138.60 is: 273,207.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,119.40 : 399,179.10 = 182,138.60 : x
  2. Step 2: Convert to fraction form
    266,119.40/399,179.10 = 182,138.60/x
  3. Step 3: Cross multiply
    266,119.40x = 399,179.10 × 182,138.60
  4. Step 4: Simplify right side
    266,119.40x = 72,705,922,423.26
  5. Step 5: Solve for x
    x = 72,705,922,423.26/266,119.40
  6. Step 6: Final answer
    x = 273,207.90

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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.