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Finding the Fourth Proportional to 68,251.42, 102,385.77 and 26,693.02

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Solution

The fourth proportional to 68,251.42, 102,385.77 and 26,693.02 is: 40,042.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,251.42 : 102,385.77 = 26,693.02 : x
  2. Step 2: Convert to fraction form
    68,251.42/102,385.77 = 26,693.02/x
  3. Step 3: Cross multiply
    68,251.42x = 102,385.77 × 26,693.02
  4. Step 4: Simplify right side
    68,251.42x = 2,732,985,406.33
  5. Step 5: Solve for x
    x = 2,732,985,406.33/68,251.42
  6. Step 6: Final answer
    x = 40,042.91

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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.