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Finding the Fourth Proportional to 71,074.97, 106,611.92 and 28,945.14

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Solution

The fourth proportional to 71,074.97, 106,611.92 and 28,945.14 is: 43,417.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,074.97 : 106,611.92 = 28,945.14 : x
  2. Step 2: Convert to fraction form
    71,074.97/106,611.92 = 28,945.14/x
  3. Step 3: Cross multiply
    71,074.97x = 106,611.92 × 28,945.14
  4. Step 4: Simplify right side
    71,074.97x = 3,085,896,805.34
  5. Step 5: Solve for x
    x = 3,085,896,805.34/71,074.97
  6. Step 6: Final answer
    x = 43,417.49

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.