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Finding the Fourth Proportional to 229,891.66, 317,202.94 and 134,379.88

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Solution

The fourth proportional to 229,891.66, 317,202.94 and 134,379.88 is: 185,416.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,891.66 : 317,202.94 = 134,379.88 : x
  2. Step 2: Convert to fraction form
    229,891.66/317,202.94 = 134,379.88/x
  3. Step 3: Cross multiply
    229,891.66x = 317,202.94 × 134,379.88
  4. Step 4: Simplify right side
    229,891.66x = 42,625,693,012.85
  5. Step 5: Solve for x
    x = 42,625,693,012.85/229,891.66
  6. Step 6: Final answer
    x = 185,416.44

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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.