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Finding the Fourth Proportional to 84,808.20, 127,243.48 and 34,874.94

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Solution

The fourth proportional to 84,808.20, 127,243.48 and 34,874.94 is: 52,325.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,808.20 : 127,243.48 = 34,874.94 : x
  2. Step 2: Convert to fraction form
    84,808.20/127,243.48 = 34,874.94/x
  3. Step 3: Cross multiply
    84,808.20x = 127,243.48 × 34,874.94
  4. Step 4: Simplify right side
    84,808.20x = 4,437,608,730.39
  5. Step 5: Solve for x
    x = 4,437,608,730.39/84,808.20
  6. Step 6: Final answer
    x = 52,325.23

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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.