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Finding the Fourth Proportional to 68,908.72, 103,342.54 and 26,795.34

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Solution

The fourth proportional to 68,908.72, 103,342.54 and 26,795.34 is: 40,185.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,908.72 : 103,342.54 = 26,795.34 : x
  2. Step 2: Convert to fraction form
    68,908.72/103,342.54 = 26,795.34/x
  3. Step 3: Cross multiply
    68,908.72x = 103,342.54 × 26,795.34
  4. Step 4: Simplify right side
    68,908.72x = 2,769,098,495.76
  5. Step 5: Solve for x
    x = 2,769,098,495.76/68,908.72
  6. Step 6: Final answer
    x = 40,185.02

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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.