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Finding the Fourth Proportional to 168,065.80, 231,919.84 and 92,614.28

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Solution

The fourth proportional to 168,065.80, 231,919.84 and 92,614.28 is: 127,801.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,065.80 : 231,919.84 = 92,614.28 : x
  2. Step 2: Convert to fraction form
    168,065.80/231,919.84 = 92,614.28/x
  3. Step 3: Cross multiply
    168,065.80x = 231,919.84 × 92,614.28
  4. Step 4: Simplify right side
    168,065.80x = 21,479,088,999.32
  5. Step 5: Solve for x
    x = 21,479,088,999.32/168,065.80
  6. Step 6: Final answer
    x = 127,801.66

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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.