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Finding the Fourth Proportional to 84,930.36, 127,410.86 and 34,983.19

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Solution

The fourth proportional to 84,930.36, 127,410.86 and 34,983.19 is: 52,481.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,930.36 : 127,410.86 = 34,983.19 : x
  2. Step 2: Convert to fraction form
    84,930.36/127,410.86 = 34,983.19/x
  3. Step 3: Cross multiply
    84,930.36x = 127,410.86 × 34,983.19
  4. Step 4: Simplify right side
    84,930.36x = 4,457,238,323.44
  5. Step 5: Solve for x
    x = 4,457,238,323.44/84,930.36
  6. Step 6: Final answer
    x = 52,481.10

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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.