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Finding the Fourth Proportional to 255,379.98, 352,421.04 and 140,656.44

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Solution

The fourth proportional to 255,379.98, 352,421.04 and 140,656.44 is: 194,104.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,379.98 : 352,421.04 = 140,656.44 : x
  2. Step 2: Convert to fraction form
    255,379.98/352,421.04 = 140,656.44/x
  3. Step 3: Cross multiply
    255,379.98x = 352,421.04 × 140,656.44
  4. Step 4: Simplify right side
    255,379.98x = 49,570,288,867.50
  5. Step 5: Solve for x
    x = 49,570,288,867.50/255,379.98
  6. Step 6: Final answer
    x = 194,104.05

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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.