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Finding the Fourth Proportional to 73,522.10, 109,991.55 and 63,769.70

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Solution

The fourth proportional to 73,522.10, 109,991.55 and 63,769.70 is: 95,401.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,522.10 : 109,991.55 = 63,769.70 : x
  2. Step 2: Convert to fraction form
    73,522.10/109,991.55 = 63,769.70/x
  3. Step 3: Cross multiply
    73,522.10x = 109,991.55 × 63,769.70
  4. Step 4: Simplify right side
    73,522.10x = 7,014,128,146.04
  5. Step 5: Solve for x
    x = 7,014,128,146.04/73,522.10
  6. Step 6: Final answer
    x = 95,401.63

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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.