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Finding the Fourth Proportional to 73,191.60, 109,657.68 and 33,665.76

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Solution

The fourth proportional to 73,191.60, 109,657.68 and 33,665.76 is: 50,438.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,191.60 : 109,657.68 = 33,665.76 : x
  2. Step 2: Convert to fraction form
    73,191.60/109,657.68 = 33,665.76/x
  3. Step 3: Cross multiply
    73,191.60x = 109,657.68 × 33,665.76
  4. Step 4: Simplify right side
    73,191.60x = 3,691,709,137.04
  5. Step 5: Solve for x
    x = 3,691,709,137.04/73,191.60
  6. Step 6: Final answer
    x = 50,438.97

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1.5x scale

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.