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Finding the Fourth Proportional to 84,930.11, 127,410.48 and 34,982.94

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Solution

The fourth proportional to 84,930.11, 127,410.48 and 34,982.94 is: 52,480.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,930.11 : 127,410.48 = 34,982.94 : x
  2. Step 2: Convert to fraction form
    84,930.11/127,410.48 = 34,982.94/x
  3. Step 3: Cross multiply
    84,930.11x = 127,410.48 × 34,982.94
  4. Step 4: Simplify right side
    84,930.11x = 4,457,193,177.21
  5. Step 5: Solve for x
    x = 4,457,193,177.21/84,930.11
  6. Step 6: Final answer
    x = 52,480.72

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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.