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Finding the Fourth Proportional to 68,774.72, 103,191.78 and 37,207.02

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Solution

The fourth proportional to 68,774.72, 103,191.78 and 37,207.02 is: 55,826.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,774.72 : 103,191.78 = 37,207.02 : x
  2. Step 2: Convert to fraction form
    68,774.72/103,191.78 = 37,207.02/x
  3. Step 3: Cross multiply
    68,774.72x = 103,191.78 × 37,207.02
  4. Step 4: Simplify right side
    68,774.72x = 3,839,458,622.30
  5. Step 5: Solve for x
    x = 3,839,458,622.30/68,774.72
  6. Step 6: Final answer
    x = 55,826.60

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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.