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Finding the Fourth Proportional to 86,448.26, 129,723.42 and 36,525.14

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Solution

The fourth proportional to 86,448.26, 129,723.42 and 36,525.14 is: 54,809.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,448.26 : 129,723.42 = 36,525.14 : x
  2. Step 2: Convert to fraction form
    86,448.26/129,723.42 = 36,525.14/x
  3. Step 3: Cross multiply
    86,448.26x = 129,723.42 × 36,525.14
  4. Step 4: Simplify right side
    86,448.26x = 4,738,166,076.78
  5. Step 5: Solve for x
    x = 4,738,166,076.78/86,448.26
  6. Step 6: Final answer
    x = 54,809.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.