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Finding the Fourth Proportional to 203,016.76, 279,976.96 and 174,326.64

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Solution

The fourth proportional to 203,016.76, 279,976.96 and 174,326.64 is: 240,410.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,016.76 : 279,976.96 = 174,326.64 : x
  2. Step 2: Convert to fraction form
    203,016.76/279,976.96 = 174,326.64/x
  3. Step 3: Cross multiply
    203,016.76x = 279,976.96 × 174,326.64
  4. Step 4: Simplify right side
    203,016.76x = 48,807,442,714.21
  5. Step 5: Solve for x
    x = 48,807,442,714.21/203,016.76
  6. Step 6: Final answer
    x = 240,410.90

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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.