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Finding the Fourth Proportional to 424,937.62, 637,445.39 and 109,395.54

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Solution

The fourth proportional to 424,937.62, 637,445.39 and 109,395.54 is: 164,103.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,937.62 : 637,445.39 = 109,395.54 : x
  2. Step 2: Convert to fraction form
    424,937.62/637,445.39 = 109,395.54/x
  3. Step 3: Cross multiply
    424,937.62x = 637,445.39 × 109,395.54
  4. Step 4: Simplify right side
    424,937.62x = 69,733,682,659.56
  5. Step 5: Solve for x
    x = 69,733,682,659.56/424,937.62
  6. Step 6: Final answer
    x = 164,103.34

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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.