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Finding the Fourth Proportional to 225,668.14, 338,493.98 and 90,773.98

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Solution

The fourth proportional to 225,668.14, 338,493.98 and 90,773.98 is: 136,157.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,668.14 : 338,493.98 = 90,773.98 : x
  2. Step 2: Convert to fraction form
    225,668.14/338,493.98 = 90,773.98/x
  3. Step 3: Cross multiply
    225,668.14x = 338,493.98 × 90,773.98
  4. Step 4: Simplify right side
    225,668.14x = 30,726,445,770.64
  5. Step 5: Solve for x
    x = 30,726,445,770.64/225,668.14
  6. Step 6: Final answer
    x = 136,157.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.