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Finding the Fourth Proportional to 510,435.21, 765,594.43 and 136,487.37

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Solution

The fourth proportional to 510,435.21, 765,594.43 and 136,487.37 is: 204,715.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,435.21 : 765,594.43 = 136,487.37 : x
  2. Step 2: Convert to fraction form
    510,435.21/765,594.43 = 136,487.37/x
  3. Step 3: Cross multiply
    510,435.21x = 765,594.43 × 136,487.37
  4. Step 4: Simplify right side
    510,435.21x = 104,493,970,237.35
  5. Step 5: Solve for x
    x = 104,493,970,237.35/510,435.21
  6. Step 6: Final answer
    x = 204,715.44

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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.