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Finding the Fourth Proportional to 68,982.42, 103,502.79 and 29,558.10

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Solution

The fourth proportional to 68,982.42, 103,502.79 and 29,558.10 is: 44,349.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,982.42 : 103,502.79 = 29,558.10 : x
  2. Step 2: Convert to fraction form
    68,982.42/103,502.79 = 29,558.10/x
  3. Step 3: Cross multiply
    68,982.42x = 103,502.79 × 29,558.10
  4. Step 4: Simplify right side
    68,982.42x = 3,059,345,817.10
  5. Step 5: Solve for x
    x = 3,059,345,817.10/68,982.42
  6. Step 6: Final answer
    x = 44,349.64

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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.