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Finding the Fourth Proportional to 277,136.96, 415,520.82 and 99,620.90

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Solution

The fourth proportional to 277,136.96, 415,520.82 and 99,620.90 is: 149,364.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,136.96 : 415,520.82 = 99,620.90 : x
  2. Step 2: Convert to fraction form
    277,136.96/415,520.82 = 99,620.90/x
  3. Step 3: Cross multiply
    277,136.96x = 415,520.82 × 99,620.90
  4. Step 4: Simplify right side
    277,136.96x = 41,394,558,597.84
  5. Step 5: Solve for x
    x = 41,394,558,597.84/277,136.96
  6. Step 6: Final answer
    x = 149,364.99

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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.