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Finding the Fourth Proportional to 68,157.72, 94,103.37 and 60,965.19

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Solution

The fourth proportional to 68,157.72, 94,103.37 and 60,965.19 is: 84,172.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,157.72 : 94,103.37 = 60,965.19 : x
  2. Step 2: Convert to fraction form
    68,157.72/94,103.37 = 60,965.19/x
  3. Step 3: Cross multiply
    68,157.72x = 94,103.37 × 60,965.19
  4. Step 4: Simplify right side
    68,157.72x = 5,737,029,831.69
  5. Step 5: Solve for x
    x = 5,737,029,831.69/68,157.72
  6. Step 6: Final answer
    x = 84,172.85

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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.