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Finding the Fourth Proportional to 68,611.44, 102,966.40 and 29,196.24

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Solution

The fourth proportional to 68,611.44, 102,966.40 and 29,196.24 is: 43,815.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,611.44 : 102,966.40 = 29,196.24 : x
  2. Step 2: Convert to fraction form
    68,611.44/102,966.40 = 29,196.24/x
  3. Step 3: Cross multiply
    68,611.44x = 102,966.40 × 29,196.24
  4. Step 4: Simplify right side
    68,611.44x = 3,006,231,726.34
  5. Step 5: Solve for x
    x = 3,006,231,726.34/68,611.44
  6. Step 6: Final answer
    x = 43,815.31

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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.