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Finding the Fourth Proportional to 68,613.20, 102,894.20 and 27,051.60

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Solution

The fourth proportional to 68,613.20, 102,894.20 and 27,051.60 is: 40,567.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,613.20 : 102,894.20 = 27,051.60 : x
  2. Step 2: Convert to fraction form
    68,613.20/102,894.20 = 27,051.60/x
  3. Step 3: Cross multiply
    68,613.20x = 102,894.20 × 27,051.60
  4. Step 4: Simplify right side
    68,613.20x = 2,783,452,740.72
  5. Step 5: Solve for x
    x = 2,783,452,740.72/68,613.20
  6. Step 6: Final answer
    x = 40,567.31

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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.