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Finding the Fourth Proportional to 68,295.64, 102,439.77 and 26,195.89

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Solution

The fourth proportional to 68,295.64, 102,439.77 and 26,195.89 is: 39,292.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,295.64 : 102,439.77 = 26,195.89 : x
  2. Step 2: Convert to fraction form
    68,295.64/102,439.77 = 26,195.89/x
  3. Step 3: Cross multiply
    68,295.64x = 102,439.77 × 26,195.89
  4. Step 4: Simplify right side
    68,295.64x = 2,683,500,946.55
  5. Step 5: Solve for x
    x = 2,683,500,946.55/68,295.64
  6. Step 6: Final answer
    x = 39,292.42

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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.