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Finding the Fourth Proportional to 125,629.67, 188,415.33 and 36,859.34

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Solution

The fourth proportional to 125,629.67, 188,415.33 and 36,859.34 is: 55,280.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,629.67 : 188,415.33 = 36,859.34 : x
  2. Step 2: Convert to fraction form
    125,629.67/188,415.33 = 36,859.34/x
  3. Step 3: Cross multiply
    125,629.67x = 188,415.33 × 36,859.34
  4. Step 4: Simplify right side
    125,629.67x = 6,944,863,767.61
  5. Step 5: Solve for x
    x = 6,944,863,767.61/125,629.67
  6. Step 6: Final answer
    x = 55,280.44

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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.