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Finding the Fourth Proportional to 86,608.58, 129,921.37 and 35,997.14

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Solution

The fourth proportional to 86,608.58, 129,921.37 and 35,997.14 is: 53,999.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,608.58 : 129,921.37 = 35,997.14 : x
  2. Step 2: Convert to fraction form
    86,608.58/129,921.37 = 35,997.14/x
  3. Step 3: Cross multiply
    86,608.58x = 129,921.37 × 35,997.14
  4. Step 4: Simplify right side
    86,608.58x = 4,676,797,979.69
  5. Step 5: Solve for x
    x = 4,676,797,979.69/86,608.58
  6. Step 6: Final answer
    x = 53,999.25

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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.