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Finding the Fourth Proportional to 86,960.88, 120,007.94 and 48,723.26

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Solution

The fourth proportional to 86,960.88, 120,007.94 and 48,723.26 is: 67,239.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,960.88 : 120,007.94 = 48,723.26 : x
  2. Step 2: Convert to fraction form
    86,960.88/120,007.94 = 48,723.26/x
  3. Step 3: Cross multiply
    86,960.88x = 120,007.94 × 48,723.26
  4. Step 4: Simplify right side
    86,960.88x = 5,847,177,219.03
  5. Step 5: Solve for x
    x = 5,847,177,219.03/86,960.88
  6. Step 6: Final answer
    x = 67,239.17

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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.