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Finding the Fourth Proportional to 92,371.89, 127,472.94 and 49,930.43

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Solution

The fourth proportional to 92,371.89, 127,472.94 and 49,930.43 is: 68,903.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,371.89 : 127,472.94 = 49,930.43 : x
  2. Step 2: Convert to fraction form
    92,371.89/127,472.94 = 49,930.43/x
  3. Step 3: Cross multiply
    92,371.89x = 127,472.94 × 49,930.43
  4. Step 4: Simplify right side
    92,371.89x = 6,364,778,070.20
  5. Step 5: Solve for x
    x = 6,364,778,070.20/92,371.89
  6. Step 6: Final answer
    x = 68,903.84

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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.