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Finding the Fourth Proportional to 68,932.79, 103,372.52 and 26,807.18

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Solution

The fourth proportional to 68,932.79, 103,372.52 and 26,807.18 is: 40,200.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,932.79 : 103,372.52 = 26,807.18 : x
  2. Step 2: Convert to fraction form
    68,932.79/103,372.52 = 26,807.18/x
  3. Step 3: Cross multiply
    68,932.79x = 103,372.52 × 26,807.18
  4. Step 4: Simplify right side
    68,932.79x = 2,771,125,099.80
  5. Step 5: Solve for x
    x = 2,771,125,099.80/68,932.79
  6. Step 6: Final answer
    x = 40,200.39

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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.