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Finding the Fourth Proportional to 181,998.40, 251,997.60 and 168,001.60

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Solution

The fourth proportional to 181,998.40, 251,997.60 and 168,001.60 is: 232,617.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,998.40 : 251,997.60 = 168,001.60 : x
  2. Step 2: Convert to fraction form
    181,998.40/251,997.60 = 168,001.60/x
  3. Step 3: Cross multiply
    181,998.40x = 251,997.60 × 168,001.60
  4. Step 4: Simplify right side
    181,998.40x = 42,335,999,996.16
  5. Step 5: Solve for x
    x = 42,335,999,996.16/181,998.40
  6. Step 6: Final answer
    x = 232,617.43

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1.5x scale

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.