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Finding the Fourth Proportional to 68,605.91, 102,849.73 and 26,515.52

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Solution

The fourth proportional to 68,605.91, 102,849.73 and 26,515.52 is: 39,750.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,605.91 : 102,849.73 = 26,515.52 : x
  2. Step 2: Convert to fraction form
    68,605.91/102,849.73 = 26,515.52/x
  3. Step 3: Cross multiply
    68,605.91x = 102,849.73 × 26,515.52
  4. Step 4: Simplify right side
    68,605.91x = 2,727,114,072.81
  5. Step 5: Solve for x
    x = 2,727,114,072.81/68,605.91
  6. Step 6: Final answer
    x = 39,750.42

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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.