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Finding the Fourth Proportional to 181,216.64, 271,920.95 and 131,705.39

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Solution

The fourth proportional to 181,216.64, 271,920.95 and 131,705.39 is: 197,627.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,216.64 : 271,920.95 = 131,705.39 : x
  2. Step 2: Convert to fraction form
    181,216.64/271,920.95 = 131,705.39/x
  3. Step 3: Cross multiply
    181,216.64x = 271,920.95 × 131,705.39
  4. Step 4: Simplify right side
    181,216.64x = 35,813,454,768.92
  5. Step 5: Solve for x
    x = 35,813,454,768.92/181,216.64
  6. Step 6: Final answer
    x = 197,627.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.