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Finding the Fourth Proportional to 433,136.59, 649,797.61 and 129,554.56

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Solution

The fourth proportional to 433,136.59, 649,797.61 and 129,554.56 is: 194,359.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,136.59 : 649,797.61 = 129,554.56 : x
  2. Step 2: Convert to fraction form
    433,136.59/649,797.61 = 129,554.56/x
  3. Step 3: Cross multiply
    433,136.59x = 649,797.61 × 129,554.56
  4. Step 4: Simplify right side
    433,136.59x = 84,184,243,452.60
  5. Step 5: Solve for x
    x = 84,184,243,452.60/433,136.59
  6. Step 6: Final answer
    x = 194,359.57

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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.