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Finding the Fourth Proportional to 68,493.79, 102,741.90 and 26,369.74

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Solution

The fourth proportional to 68,493.79, 102,741.90 and 26,369.74 is: 39,555.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,493.79 : 102,741.90 = 26,369.74 : x
  2. Step 2: Convert to fraction form
    68,493.79/102,741.90 = 26,369.74/x
  3. Step 3: Cross multiply
    68,493.79x = 102,741.90 × 26,369.74
  4. Step 4: Simplify right side
    68,493.79x = 2,709,277,190.11
  5. Step 5: Solve for x
    x = 2,709,277,190.11/68,493.79
  6. Step 6: Final answer
    x = 39,555.08

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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.