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Finding the Fourth Proportional to 134,414.91, 185,092.17 and 131,431.40

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Solution

The fourth proportional to 134,414.91, 185,092.17 and 131,431.40 is: 180,983.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,414.91 : 185,092.17 = 131,431.40 : x
  2. Step 2: Convert to fraction form
    134,414.91/185,092.17 = 131,431.40/x
  3. Step 3: Cross multiply
    134,414.91x = 185,092.17 × 131,431.40
  4. Step 4: Simplify right side
    134,414.91x = 24,326,922,106.68
  5. Step 5: Solve for x
    x = 24,326,922,106.68/134,414.91
  6. Step 6: Final answer
    x = 180,983.81

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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.