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Finding the Fourth Proportional to 91,951.73, 126,893.49 and 51,665.46

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Solution

The fourth proportional to 91,951.73, 126,893.49 and 51,665.46 is: 71,298.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,951.73 : 126,893.49 = 51,665.46 : x
  2. Step 2: Convert to fraction form
    91,951.73/126,893.49 = 51,665.46/x
  3. Step 3: Cross multiply
    91,951.73x = 126,893.49 × 51,665.46
  4. Step 4: Simplify right side
    91,951.73x = 6,556,010,531.86
  5. Step 5: Solve for x
    x = 6,556,010,531.86/91,951.73
  6. Step 6: Final answer
    x = 71,298.40

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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.