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Finding the Fourth Proportional to 73,781.92, 110,589.30 and 64,880.08

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Solution

The fourth proportional to 73,781.92, 110,589.30 and 64,880.08 is: 97,246.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,781.92 : 110,589.30 = 64,880.08 : x
  2. Step 2: Convert to fraction form
    73,781.92/110,589.30 = 64,880.08/x
  3. Step 3: Cross multiply
    73,781.92x = 110,589.30 × 64,880.08
  4. Step 4: Simplify right side
    73,781.92x = 7,175,042,631.14
  5. Step 5: Solve for x
    x = 7,175,042,631.14/73,781.92
  6. Step 6: Final answer
    x = 97,246.62

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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.