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Finding the Fourth Proportional to 68,785.62, 103,207.62 and 37,584.42

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Solution

The fourth proportional to 68,785.62, 103,207.62 and 37,584.42 is: 56,392.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,785.62 : 103,207.62 = 37,584.42 : x
  2. Step 2: Convert to fraction form
    68,785.62/103,207.62 = 37,584.42/x
  3. Step 3: Cross multiply
    68,785.62x = 103,207.62 × 37,584.42
  4. Step 4: Simplify right side
    68,785.62x = 3,878,998,537.28
  5. Step 5: Solve for x
    x = 3,878,998,537.28/68,785.62
  6. Step 6: Final answer
    x = 56,392.58

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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.