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Finding the Fourth Proportional to 255,571.01, 352,690.38 and 140,853.86

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Solution

The fourth proportional to 255,571.01, 352,690.38 and 140,853.86 is: 194,379.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,571.01 : 352,690.38 = 140,853.86 : x
  2. Step 2: Convert to fraction form
    255,571.01/352,690.38 = 140,853.86/x
  3. Step 3: Cross multiply
    255,571.01x = 352,690.38 × 140,853.86
  4. Step 4: Simplify right side
    255,571.01x = 49,677,799,644.41
  5. Step 5: Solve for x
    x = 49,677,799,644.41/255,571.01
  6. Step 6: Final answer
    x = 194,379.64

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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.