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Finding the Fourth Proportional to 84,791.79, 127,181.50 and 34,194.23

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Solution

The fourth proportional to 84,791.79, 127,181.50 and 34,194.23 is: 51,288.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,791.79 : 127,181.50 = 34,194.23 : x
  2. Step 2: Convert to fraction form
    84,791.79/127,181.50 = 34,194.23/x
  3. Step 3: Cross multiply
    84,791.79x = 127,181.50 × 34,194.23
  4. Step 4: Simplify right side
    84,791.79x = 4,348,873,462.75
  5. Step 5: Solve for x
    x = 4,348,873,462.75/84,791.79
  6. Step 6: Final answer
    x = 51,288.85

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Double scale
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1.5x scale

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.