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Finding the Fourth Proportional to 92,661.43, 138,939.47 and 36,471.07

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Solution

The fourth proportional to 92,661.43, 138,939.47 and 36,471.07 is: 54,685.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,661.43 : 138,939.47 = 36,471.07 : x
  2. Step 2: Convert to fraction form
    92,661.43/138,939.47 = 36,471.07/x
  3. Step 3: Cross multiply
    92,661.43x = 138,939.47 × 36,471.07
  4. Step 4: Simplify right side
    92,661.43x = 5,067,271,392.30
  5. Step 5: Solve for x
    x = 5,067,271,392.30/92,661.43
  6. Step 6: Final answer
    x = 54,685.88

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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.