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Finding the Fourth Proportional to 71,669.97, 106,900.25 and 62,235.80

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Solution

The fourth proportional to 71,669.97, 106,900.25 and 62,235.80 is: 92,828.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,669.97 : 106,900.25 = 62,235.80 : x
  2. Step 2: Convert to fraction form
    71,669.97/106,900.25 = 62,235.80/x
  3. Step 3: Cross multiply
    71,669.97x = 106,900.25 × 62,235.80
  4. Step 4: Simplify right side
    71,669.97x = 6,653,022,578.95
  5. Step 5: Solve for x
    x = 6,653,022,578.95/71,669.97
  6. Step 6: Final answer
    x = 92,828.59

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.