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Finding the Fourth Proportional to 95,172.44, 131,391.06 and 65,003

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Solution

The fourth proportional to 95,172.44, 131,391.06 and 65,003 is: 89,740.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,172.44 : 131,391.06 = 65,003 : x
  2. Step 2: Convert to fraction form
    95,172.44/131,391.06 = 65,003/x
  3. Step 3: Cross multiply
    95,172.44x = 131,391.06 × 65,003
  4. Step 4: Simplify right side
    95,172.44x = 8,540,813,073.18
  5. Step 5: Solve for x
    x = 8,540,813,073.18/95,172.44
  6. Step 6: Final answer
    x = 89,740.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.