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Finding the Fourth Proportional to 68,675.73, 103,481.54 and 56,469.19

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Solution

The fourth proportional to 68,675.73, 103,481.54 and 56,469.19 is: 85,088.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,675.73 : 103,481.54 = 56,469.19 : x
  2. Step 2: Convert to fraction form
    68,675.73/103,481.54 = 56,469.19/x
  3. Step 3: Cross multiply
    68,675.73x = 103,481.54 × 56,469.19
  4. Step 4: Simplify right side
    68,675.73x = 5,843,518,626.22
  5. Step 5: Solve for x
    x = 5,843,518,626.22/68,675.73
  6. Step 6: Final answer
    x = 85,088.55

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.