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Finding the Fourth Proportional to 117,471.06, 162,108.54 and 67,179.78

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Solution

The fourth proportional to 117,471.06, 162,108.54 and 67,179.78 is: 92,707.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,471.06 : 162,108.54 = 67,179.78 : x
  2. Step 2: Convert to fraction form
    117,471.06/162,108.54 = 67,179.78/x
  3. Step 3: Cross multiply
    117,471.06x = 162,108.54 × 67,179.78
  4. Step 4: Simplify right side
    117,471.06x = 10,890,416,053.32
  5. Step 5: Solve for x
    x = 10,890,416,053.32/117,471.06
  6. Step 6: Final answer
    x = 92,707.23

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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.