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Finding the Fourth Proportional to 234,873.63, 352,309.49 and 85,078.87

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Solution

The fourth proportional to 234,873.63, 352,309.49 and 85,078.87 is: 127,617.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,873.63 : 352,309.49 = 85,078.87 : x
  2. Step 2: Convert to fraction form
    234,873.63/352,309.49 = 85,078.87/x
  3. Step 3: Cross multiply
    234,873.63x = 352,309.49 × 85,078.87
  4. Step 4: Simplify right side
    234,873.63x = 29,974,091,537.93
  5. Step 5: Solve for x
    x = 29,974,091,537.93/234,873.63
  6. Step 6: Final answer
    x = 127,617.95

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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.