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Finding the Fourth Proportional to 92,383.78, 127,489.34 and 49,942.22

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Solution

The fourth proportional to 92,383.78, 127,489.34 and 49,942.22 is: 68,920.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,383.78 : 127,489.34 = 49,942.22 : x
  2. Step 2: Convert to fraction form
    92,383.78/127,489.34 = 49,942.22/x
  3. Step 3: Cross multiply
    92,383.78x = 127,489.34 × 49,942.22
  4. Step 4: Simplify right side
    92,383.78x = 6,367,100,665.93
  5. Step 5: Solve for x
    x = 6,367,100,665.93/92,383.78
  6. Step 6: Final answer
    x = 68,920.11

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1.5x scale

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.