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Finding the Fourth Proportional to 86,713.26, 119,661.77 and 48,472.89

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Solution

The fourth proportional to 86,713.26, 119,661.77 and 48,472.89 is: 66,891.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,713.26 : 119,661.77 = 48,472.89 : x
  2. Step 2: Convert to fraction form
    86,713.26/119,661.77 = 48,472.89/x
  3. Step 3: Cross multiply
    86,713.26x = 119,661.77 × 48,472.89
  4. Step 4: Simplify right side
    86,713.26x = 5,800,351,572.05
  5. Step 5: Solve for x
    x = 5,800,351,572.05/86,713.26
  6. Step 6: Final answer
    x = 66,891.17

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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.