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Finding the Fourth Proportional to 45,773.88, 68,671.78 and 19,105.04

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Solution

The fourth proportional to 45,773.88, 68,671.78 and 19,105.04 is: 28,662.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,773.88 : 68,671.78 = 19,105.04 : x
  2. Step 2: Convert to fraction form
    45,773.88/68,671.78 = 19,105.04/x
  3. Step 3: Cross multiply
    45,773.88x = 68,671.78 × 19,105.04
  4. Step 4: Simplify right side
    45,773.88x = 1,311,977,103.77
  5. Step 5: Solve for x
    x = 1,311,977,103.77/45,773.88
  6. Step 6: Final answer
    x = 28,662.13

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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.