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Finding the Fourth Proportional to 424,996.52, 637,611.20 and 125,477

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Solution

The fourth proportional to 424,996.52, 637,611.20 and 125,477 is: 188,249.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,996.52 : 637,611.20 = 125,477 : x
  2. Step 2: Convert to fraction form
    424,996.52/637,611.20 = 125,477/x
  3. Step 3: Cross multiply
    424,996.52x = 637,611.20 × 125,477
  4. Step 4: Simplify right side
    424,996.52x = 80,005,540,542.40
  5. Step 5: Solve for x
    x = 80,005,540,542.40/424,996.52
  6. Step 6: Final answer
    x = 188,249.87

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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.