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Finding the Fourth Proportional to 181,961.64, 251,100.41 and 101,384.97

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Solution

The fourth proportional to 181,961.64, 251,100.41 and 101,384.97 is: 139,907.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,961.64 : 251,100.41 = 101,384.97 : x
  2. Step 2: Convert to fraction form
    181,961.64/251,100.41 = 101,384.97/x
  3. Step 3: Cross multiply
    181,961.64x = 251,100.41 × 101,384.97
  4. Step 4: Simplify right side
    181,961.64x = 25,457,806,086.29
  5. Step 5: Solve for x
    x = 25,457,806,086.29/181,961.64
  6. Step 6: Final answer
    x = 139,907.54

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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.