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Finding the Fourth Proportional to 69,116.67, 103,670.14 and 26,988.84

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Solution

The fourth proportional to 69,116.67, 103,670.14 and 26,988.84 is: 40,481.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,116.67 : 103,670.14 = 26,988.84 : x
  2. Step 2: Convert to fraction form
    69,116.67/103,670.14 = 26,988.84/x
  3. Step 3: Cross multiply
    69,116.67x = 103,670.14 × 26,988.84
  4. Step 4: Simplify right side
    69,116.67x = 2,797,936,821.24
  5. Step 5: Solve for x
    x = 2,797,936,821.24/69,116.67
  6. Step 6: Final answer
    x = 40,481.36

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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.