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Finding the Fourth Proportional to 436,175.55, 654,136.56 and 169,876.71

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Solution

The fourth proportional to 436,175.55, 654,136.56 and 169,876.71 is: 254,765.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,175.55 : 654,136.56 = 169,876.71 : x
  2. Step 2: Convert to fraction form
    436,175.55/654,136.56 = 169,876.71/x
  3. Step 3: Cross multiply
    436,175.55x = 654,136.56 × 169,876.71
  4. Step 4: Simplify right side
    436,175.55x = 111,122,566,703.52
  5. Step 5: Solve for x
    x = 111,122,566,703.52/436,175.55
  6. Step 6: Final answer
    x = 254,765.69

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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.