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Finding the Fourth Proportional to 436,074.05, 654,111.08 and 136,578.07

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Solution

The fourth proportional to 436,074.05, 654,111.08 and 136,578.07 is: 204,867.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,074.05 : 654,111.08 = 136,578.07 : x
  2. Step 2: Convert to fraction form
    436,074.05/654,111.08 = 136,578.07/x
  3. Step 3: Cross multiply
    436,074.05x = 654,111.08 × 136,578.07
  4. Step 4: Simplify right side
    436,074.05x = 89,337,228,872.02
  5. Step 5: Solve for x
    x = 89,337,228,872.02/436,074.05
  6. Step 6: Final answer
    x = 204,867.11

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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.