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Finding the Fourth Proportional to 84,694.38, 127,082.88 and 34,789.47

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Solution

The fourth proportional to 84,694.38, 127,082.88 and 34,789.47 is: 52,201.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,694.38 : 127,082.88 = 34,789.47 : x
  2. Step 2: Convert to fraction form
    84,694.38/127,082.88 = 34,789.47/x
  3. Step 3: Cross multiply
    84,694.38x = 127,082.88 × 34,789.47
  4. Step 4: Simplify right side
    84,694.38x = 4,421,146,041.27
  5. Step 5: Solve for x
    x = 4,421,146,041.27/84,694.38
  6. Step 6: Final answer
    x = 52,201.17

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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.