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Finding the Fourth Proportional to 436,118.69, 654,177.51 and 136,622.59

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Solution

The fourth proportional to 436,118.69, 654,177.51 and 136,622.59 is: 204,933.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,118.69 : 654,177.51 = 136,622.59 : x
  2. Step 2: Convert to fraction form
    436,118.69/654,177.51 = 136,622.59/x
  3. Step 3: Cross multiply
    436,118.69x = 654,177.51 × 136,622.59
  4. Step 4: Simplify right side
    436,118.69x = 89,375,425,735.95
  5. Step 5: Solve for x
    x = 89,375,425,735.95/436,118.69
  6. Step 6: Final answer
    x = 204,933.72

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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.