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Finding the Fourth Proportional to 534,634.08, 801,952.78 and 135,274.78

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Solution

The fourth proportional to 534,634.08, 801,952.78 and 135,274.78 is: 202,912.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,634.08 : 801,952.78 = 135,274.78 : x
  2. Step 2: Convert to fraction form
    534,634.08/801,952.78 = 135,274.78/x
  3. Step 3: Cross multiply
    534,634.08x = 801,952.78 × 135,274.78
  4. Step 4: Simplify right side
    534,634.08x = 108,483,985,884.89
  5. Step 5: Solve for x
    x = 108,483,985,884.89/534,634.08
  6. Step 6: Final answer
    x = 202,912.59

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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.