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Finding the Fourth Proportional to 68,672.19, 103,051.62 and 29,229.24

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Solution

The fourth proportional to 68,672.19, 103,051.62 and 29,229.24 is: 43,862.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,672.19 : 103,051.62 = 29,229.24 : x
  2. Step 2: Convert to fraction form
    68,672.19/103,051.62 = 29,229.24/x
  3. Step 3: Cross multiply
    68,672.19x = 103,051.62 × 29,229.24
  4. Step 4: Simplify right side
    68,672.19x = 3,012,120,533.37
  5. Step 5: Solve for x
    x = 3,012,120,533.37/68,672.19
  6. Step 6: Final answer
    x = 43,862.30

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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.