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Finding the Fourth Proportional to 181,959.42, 251,100.65 and 99,174.10

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Solution

The fourth proportional to 181,959.42, 251,100.65 and 99,174.10 is: 136,858.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,959.42 : 251,100.65 = 99,174.10 : x
  2. Step 2: Convert to fraction form
    181,959.42/251,100.65 = 99,174.10/x
  3. Step 3: Cross multiply
    181,959.42x = 251,100.65 × 99,174.10
  4. Step 4: Simplify right side
    181,959.42x = 24,902,679,221.79
  5. Step 5: Solve for x
    x = 24,902,679,221.79/181,959.42
  6. Step 6: Final answer
    x = 136,858.43

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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.