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Finding the Fourth Proportional to 125,738.59, 188,646.84 and 43,586.82

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Solution

The fourth proportional to 125,738.59, 188,646.84 and 43,586.82 is: 65,393.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,738.59 : 188,646.84 = 43,586.82 : x
  2. Step 2: Convert to fraction form
    125,738.59/188,646.84 = 43,586.82/x
  3. Step 3: Cross multiply
    125,738.59x = 188,646.84 × 43,586.82
  4. Step 4: Simplify right side
    125,738.59x = 8,222,515,858.65
  5. Step 5: Solve for x
    x = 8,222,515,858.65/125,738.59
  6. Step 6: Final answer
    x = 65,393.73

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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.