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Finding the Fourth Proportional to 228,067.52, 314,709.06 and 126,076.55

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Solution

The fourth proportional to 228,067.52, 314,709.06 and 126,076.55 is: 173,972.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,067.52 : 314,709.06 = 126,076.55 : x
  2. Step 2: Convert to fraction form
    228,067.52/314,709.06 = 126,076.55/x
  3. Step 3: Cross multiply
    228,067.52x = 314,709.06 × 126,076.55
  4. Step 4: Simplify right side
    228,067.52x = 39,677,432,538.54
  5. Step 5: Solve for x
    x = 39,677,432,538.54/228,067.52
  6. Step 6: Final answer
    x = 173,972.31

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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.