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Finding the Fourth Proportional to 213,909.75, 295,273.22 and 124,485.75

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Solution

The fourth proportional to 213,909.75, 295,273.22 and 124,485.75 is: 171,835.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,909.75 : 295,273.22 = 124,485.75 : x
  2. Step 2: Convert to fraction form
    213,909.75/295,273.22 = 124,485.75/x
  3. Step 3: Cross multiply
    213,909.75x = 295,273.22 × 124,485.75
  4. Step 4: Simplify right side
    213,909.75x = 36,757,308,246.62
  5. Step 5: Solve for x
    x = 36,757,308,246.62/213,909.75
  6. Step 6: Final answer
    x = 171,835.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.