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Finding the Fourth Proportional to 181,259.89, 271,475.69 and 86,556.41

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Solution

The fourth proportional to 181,259.89, 271,475.69 and 86,556.41 is: 129,636.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,259.89 : 271,475.69 = 86,556.41 : x
  2. Step 2: Convert to fraction form
    181,259.89/271,475.69 = 86,556.41/x
  3. Step 3: Cross multiply
    181,259.89x = 271,475.69 × 86,556.41
  4. Step 4: Simplify right side
    181,259.89x = 23,497,959,338.51
  5. Step 5: Solve for x
    x = 23,497,959,338.51/181,259.89
  6. Step 6: Final answer
    x = 129,636.84

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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.