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Finding the Fourth Proportional to 71,788.82, 107,705.28 and 36,753.08

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Solution

The fourth proportional to 71,788.82, 107,705.28 and 36,753.08 is: 55,140.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,788.82 : 107,705.28 = 36,753.08 : x
  2. Step 2: Convert to fraction form
    71,788.82/107,705.28 = 36,753.08/x
  3. Step 3: Cross multiply
    71,788.82x = 107,705.28 × 36,753.08
  4. Step 4: Simplify right side
    71,788.82x = 3,958,500,772.26
  5. Step 5: Solve for x
    x = 3,958,500,772.26/71,788.82
  6. Step 6: Final answer
    x = 55,140.91

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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.