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Finding the Fourth Proportional to 626,667.42, 940,136.10 and 200,103

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Solution

The fourth proportional to 626,667.42, 940,136.10 and 200,103 is: 300,197.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,667.42 : 940,136.10 = 200,103 : x
  2. Step 2: Convert to fraction form
    626,667.42/940,136.10 = 200,103/x
  3. Step 3: Cross multiply
    626,667.42x = 940,136.10 × 200,103
  4. Step 4: Simplify right side
    626,667.42x = 188,124,054,018.30
  5. Step 5: Solve for x
    x = 188,124,054,018.30/626,667.42
  6. Step 6: Final answer
    x = 300,197.60

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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.