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Finding the Fourth Proportional to 331,544.80, 497,576.40 and 154,073.80

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Solution

The fourth proportional to 331,544.80, 497,576.40 and 154,073.80 is: 231,231.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,544.80 : 497,576.40 = 154,073.80 : x
  2. Step 2: Convert to fraction form
    331,544.80/497,576.40 = 154,073.80/x
  3. Step 3: Cross multiply
    331,544.80x = 497,576.40 × 154,073.80
  4. Step 4: Simplify right side
    331,544.80x = 76,663,486,738.32
  5. Step 5: Solve for x
    x = 76,663,486,738.32/331,544.80
  6. Step 6: Final answer
    x = 231,231.15

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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.