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Finding the Fourth Proportional to 68,936.54, 103,378.14 and 26,810.93

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Solution

The fourth proportional to 68,936.54, 103,378.14 and 26,810.93 is: 40,206.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,936.54 : 103,378.14 = 26,810.93 : x
  2. Step 2: Convert to fraction form
    68,936.54/103,378.14 = 26,810.93/x
  3. Step 3: Cross multiply
    68,936.54x = 103,378.14 × 26,810.93
  4. Step 4: Simplify right side
    68,936.54x = 2,771,663,558.18
  5. Step 5: Solve for x
    x = 2,771,663,558.18/68,936.54
  6. Step 6: Final answer
    x = 40,206.02

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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.