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Finding the Fourth Proportional to 84,774.66, 127,205.73 and 34,891.62

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Solution

The fourth proportional to 84,774.66, 127,205.73 and 34,891.62 is: 52,355.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,774.66 : 127,205.73 = 34,891.62 : x
  2. Step 2: Convert to fraction form
    84,774.66/127,205.73 = 34,891.62/x
  3. Step 3: Cross multiply
    84,774.66x = 127,205.73 × 34,891.62
  4. Step 4: Simplify right side
    84,774.66x = 4,438,413,992.98
  5. Step 5: Solve for x
    x = 4,438,413,992.98/84,774.66
  6. Step 6: Final answer
    x = 52,355.43

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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.