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Finding the Fourth Proportional to 68,297.40, 102,387.67 and 26,207.69

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Solution

The fourth proportional to 68,297.40, 102,387.67 and 26,207.69 is: 39,289.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,297.40 : 102,387.67 = 26,207.69 : x
  2. Step 2: Convert to fraction form
    68,297.40/102,387.67 = 26,207.69/x
  3. Step 3: Cross multiply
    68,297.40x = 102,387.67 × 26,207.69
  4. Step 4: Simplify right side
    68,297.40x = 2,683,344,315.18
  5. Step 5: Solve for x
    x = 2,683,344,315.18/68,297.40
  6. Step 6: Final answer
    x = 39,289.11

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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.