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Finding the Fourth Proportional to 181,712.82, 250,761.78 and 101,139.18

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Solution

The fourth proportional to 181,712.82, 250,761.78 and 101,139.18 is: 139,571.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,712.82 : 250,761.78 = 101,139.18 : x
  2. Step 2: Convert to fraction form
    181,712.82/250,761.78 = 101,139.18/x
  3. Step 3: Cross multiply
    181,712.82x = 250,761.78 × 101,139.18
  4. Step 4: Simplify right side
    181,712.82x = 25,361,840,804.54
  5. Step 5: Solve for x
    x = 25,361,840,804.54/181,712.82
  6. Step 6: Final answer
    x = 139,571.00

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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.