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Finding the Fourth Proportional to 225,978.39, 338,839.12 and 174,668.90

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Solution

The fourth proportional to 225,978.39, 338,839.12 and 174,668.90 is: 261,904.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,978.39 : 338,839.12 = 174,668.90 : x
  2. Step 2: Convert to fraction form
    225,978.39/338,839.12 = 174,668.90/x
  3. Step 3: Cross multiply
    225,978.39x = 338,839.12 × 174,668.90
  4. Step 4: Simplify right side
    225,978.39x = 59,184,656,367.37
  5. Step 5: Solve for x
    x = 59,184,656,367.37/225,978.39
  6. Step 6: Final answer
    x = 261,904.05

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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.