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Finding the Fourth Proportional to 269,063.70, 403,318.66 and 119,374.48

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Solution

The fourth proportional to 269,063.70, 403,318.66 and 119,374.48 is: 178,938.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,063.70 : 403,318.66 = 119,374.48 : x
  2. Step 2: Convert to fraction form
    269,063.70/403,318.66 = 119,374.48/x
  3. Step 3: Cross multiply
    269,063.70x = 403,318.66 × 119,374.48
  4. Step 4: Simplify right side
    269,063.70x = 48,145,955,311.80
  5. Step 5: Solve for x
    x = 48,145,955,311.80/269,063.70
  6. Step 6: Final answer
    x = 178,938.87

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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.