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Finding the Fourth Proportional to 136,573.21, 204,859.82 and 43,086.25

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Solution

The fourth proportional to 136,573.21, 204,859.82 and 43,086.25 is: 64,629.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,573.21 : 204,859.82 = 43,086.25 : x
  2. Step 2: Convert to fraction form
    136,573.21/204,859.82 = 43,086.25/x
  3. Step 3: Cross multiply
    136,573.21x = 204,859.82 × 43,086.25
  4. Step 4: Simplify right side
    136,573.21x = 8,826,641,419.48
  5. Step 5: Solve for x
    x = 8,826,641,419.48/136,573.21
  6. Step 6: Final answer
    x = 64,629.38

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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.