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Finding the Fourth Proportional to 68,994.73, 103,504.40 and 19,073.72

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Solution

The fourth proportional to 68,994.73, 103,504.40 and 19,073.72 is: 28,613.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,994.73 : 103,504.40 = 19,073.72 : x
  2. Step 2: Convert to fraction form
    68,994.73/103,504.40 = 19,073.72/x
  3. Step 3: Cross multiply
    68,994.73x = 103,504.40 × 19,073.72
  4. Step 4: Simplify right side
    68,994.73x = 1,974,214,179.29
  5. Step 5: Solve for x
    x = 1,974,214,179.29/68,994.73
  6. Step 6: Final answer
    x = 28,613.98

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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.