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Finding the Fourth Proportional to 181,324.58, 271,986.93 and 68,978.84

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Solution

The fourth proportional to 181,324.58, 271,986.93 and 68,978.84 is: 103,468.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,324.58 : 271,986.93 = 68,978.84 : x
  2. Step 2: Convert to fraction form
    181,324.58/271,986.93 = 68,978.84/x
  3. Step 3: Cross multiply
    181,324.58x = 271,986.93 × 68,978.84
  4. Step 4: Simplify right side
    181,324.58x = 18,761,341,566.63
  5. Step 5: Solve for x
    x = 18,761,341,566.63/181,324.58
  6. Step 6: Final answer
    x = 103,468.28

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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.