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Finding the Fourth Proportional to 361,710.61, 499,136.31 and 200,559.69

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Solution

The fourth proportional to 361,710.61, 499,136.31 and 200,559.69 is: 276,758.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,710.61 : 499,136.31 = 200,559.69 : x
  2. Step 2: Convert to fraction form
    361,710.61/499,136.31 = 200,559.69/x
  3. Step 3: Cross multiply
    361,710.61x = 499,136.31 × 200,559.69
  4. Step 4: Simplify right side
    361,710.61x = 100,106,623,601.34
  5. Step 5: Solve for x
    x = 100,106,623,601.34/361,710.61
  6. Step 6: Final answer
    x = 276,758.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.