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Finding the Fourth Proportional to 117,671.52, 162,385.92 and 67,370.52

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Solution

The fourth proportional to 117,671.52, 162,385.92 and 67,370.52 is: 92,970.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,671.52 : 162,385.92 = 67,370.52 : x
  2. Step 2: Convert to fraction form
    117,671.52/162,385.92 = 67,370.52/x
  3. Step 3: Cross multiply
    117,671.52x = 162,385.92 × 67,370.52
  4. Step 4: Simplify right side
    117,671.52x = 10,940,023,871.08
  5. Step 5: Solve for x
    x = 10,940,023,871.08/117,671.52
  6. Step 6: Final answer
    x = 92,970.87

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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.