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Finding the Fourth Proportional to 92,076.42, 127,076.31 and 51,791.70

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Solution

The fourth proportional to 92,076.42, 127,076.31 and 51,791.70 is: 71,478.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,076.42 : 127,076.31 = 51,791.70 : x
  2. Step 2: Convert to fraction form
    92,076.42/127,076.31 = 51,791.70/x
  3. Step 3: Cross multiply
    92,076.42x = 127,076.31 × 51,791.70
  4. Step 4: Simplify right side
    92,076.42x = 6,581,498,124.63
  5. Step 5: Solve for x
    x = 6,581,498,124.63/92,076.42
  6. Step 6: Final answer
    x = 71,478.65

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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.