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Finding the Fourth Proportional to 125,766.57, 188,645.49 and 35,809.85

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Solution

The fourth proportional to 125,766.57, 188,645.49 and 35,809.85 is: 53,713.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,766.57 : 188,645.49 = 35,809.85 : x
  2. Step 2: Convert to fraction form
    125,766.57/188,645.49 = 35,809.85/x
  3. Step 3: Cross multiply
    125,766.57x = 188,645.49 × 35,809.85
  4. Step 4: Simplify right side
    125,766.57x = 6,755,366,261.63
  5. Step 5: Solve for x
    x = 6,755,366,261.63/125,766.57
  6. Step 6: Final answer
    x = 53,713.53

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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.