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Finding the Fourth Proportional to 172,787.34, 238,447.65 and 96,311.30

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Solution

The fourth proportional to 172,787.34, 238,447.65 and 96,311.30 is: 132,910.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,787.34 : 238,447.65 = 96,311.30 : x
  2. Step 2: Convert to fraction form
    172,787.34/238,447.65 = 96,311.30/x
  3. Step 3: Cross multiply
    172,787.34x = 238,447.65 × 96,311.30
  4. Step 4: Simplify right side
    172,787.34x = 22,965,203,153.45
  5. Step 5: Solve for x
    x = 22,965,203,153.45/172,787.34
  6. Step 6: Final answer
    x = 132,910.22

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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.