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Finding the Fourth Proportional to 68,986.60, 103,393.36 and 29,497.36

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Solution

The fourth proportional to 68,986.60, 103,393.36 and 29,497.36 is: 44,209.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,986.60 : 103,393.36 = 29,497.36 : x
  2. Step 2: Convert to fraction form
    68,986.60/103,393.36 = 29,497.36/x
  3. Step 3: Cross multiply
    68,986.60x = 103,393.36 × 29,497.36
  4. Step 4: Simplify right side
    68,986.60x = 3,049,831,161.53
  5. Step 5: Solve for x
    x = 3,049,831,161.53/68,986.60
  6. Step 6: Final answer
    x = 44,209.04

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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.