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Finding the Fourth Proportional to 51,104.50, 76,656.75 and 14,168.50

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Solution

The fourth proportional to 51,104.50, 76,656.75 and 14,168.50 is: 21,252.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,104.50 : 76,656.75 = 14,168.50 : x
  2. Step 2: Convert to fraction form
    51,104.50/76,656.75 = 14,168.50/x
  3. Step 3: Cross multiply
    51,104.50x = 76,656.75 × 14,168.50
  4. Step 4: Simplify right side
    51,104.50x = 1,086,111,162.38
  5. Step 5: Solve for x
    x = 1,086,111,162.38/51,104.50
  6. Step 6: Final answer
    x = 21,252.75

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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.