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Finding the Fourth Proportional to 68,885.49, 103,369.62 and 29,442.60

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Solution

The fourth proportional to 68,885.49, 103,369.62 and 29,442.60 is: 44,181.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,885.49 : 103,369.62 = 29,442.60 : x
  2. Step 2: Convert to fraction form
    68,885.49/103,369.62 = 29,442.60/x
  3. Step 3: Cross multiply
    68,885.49x = 103,369.62 × 29,442.60
  4. Step 4: Simplify right side
    68,885.49x = 3,043,470,463.97
  5. Step 5: Solve for x
    x = 3,043,470,463.97/68,885.49
  6. Step 6: Final answer
    x = 44,181.59

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1.5x scale

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.