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Finding the Fourth Proportional to 68,507.57, 102,699.07 and 26,360.77

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Solution

The fourth proportional to 68,507.57, 102,699.07 and 26,360.77 is: 39,517.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,507.57 : 102,699.07 = 26,360.77 : x
  2. Step 2: Convert to fraction form
    68,507.57/102,699.07 = 26,360.77/x
  3. Step 3: Cross multiply
    68,507.57x = 102,699.07 × 26,360.77
  4. Step 4: Simplify right side
    68,507.57x = 2,707,226,049.99
  5. Step 5: Solve for x
    x = 2,707,226,049.99/68,507.57
  6. Step 6: Final answer
    x = 39,517.18

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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.