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Finding the Fourth Proportional to 168,054.28, 231,913.80 and 92,602.80

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Solution

The fourth proportional to 168,054.28, 231,913.80 and 92,602.80 is: 127,791.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,054.28 : 231,913.80 = 92,602.80 : x
  2. Step 2: Convert to fraction form
    168,054.28/231,913.80 = 92,602.80/x
  3. Step 3: Cross multiply
    168,054.28x = 231,913.80 × 92,602.80
  4. Step 4: Simplify right side
    168,054.28x = 21,475,867,238.64
  5. Step 5: Solve for x
    x = 21,475,867,238.64/168,054.28
  6. Step 6: Final answer
    x = 127,791.25

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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.