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Finding the Fourth Proportional to 207,636.60, 311,476.62 and 95,297.64

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Solution

The fourth proportional to 207,636.60, 311,476.62 and 95,297.64 is: 142,956.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,636.60 : 311,476.62 = 95,297.64 : x
  2. Step 2: Convert to fraction form
    207,636.60/311,476.62 = 95,297.64/x
  3. Step 3: Cross multiply
    207,636.60x = 311,476.62 × 95,297.64
  4. Step 4: Simplify right side
    207,636.60x = 29,682,986,801.18
  5. Step 5: Solve for x
    x = 29,682,986,801.18/207,636.60
  6. Step 6: Final answer
    x = 142,956.43

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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.