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Finding the Fourth Proportional to 228,631.52, 315,504.32 and 126,652.88

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Solution

The fourth proportional to 228,631.52, 315,504.32 and 126,652.88 is: 174,777.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,631.52 : 315,504.32 = 126,652.88 : x
  2. Step 2: Convert to fraction form
    228,631.52/315,504.32 = 126,652.88/x
  3. Step 3: Cross multiply
    228,631.52x = 315,504.32 × 126,652.88
  4. Step 4: Simplify right side
    228,631.52x = 39,959,530,780.44
  5. Step 5: Solve for x
    x = 39,959,530,780.44/228,631.52
  6. Step 6: Final answer
    x = 174,777.00

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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.