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Finding the Fourth Proportional to 255,661.26, 352,796.61 and 140,933.94

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Solution

The fourth proportional to 255,661.26, 352,796.61 and 140,933.94 is: 194,480.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,661.26 : 352,796.61 = 140,933.94 : x
  2. Step 2: Convert to fraction form
    255,661.26/352,796.61 = 140,933.94/x
  3. Step 3: Cross multiply
    255,661.26x = 352,796.61 × 140,933.94
  4. Step 4: Simplify right side
    255,661.26x = 49,721,016,265.94
  5. Step 5: Solve for x
    x = 49,721,016,265.94/255,661.26
  6. Step 6: Final answer
    x = 194,480.06

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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.