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Finding the Fourth Proportional to 181,729.80, 272,886.30 and 122,826.60

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Solution

The fourth proportional to 181,729.80, 272,886.30 and 122,826.60 is: 184,436.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,729.80 : 272,886.30 = 122,826.60 : x
  2. Step 2: Convert to fraction form
    181,729.80/272,886.30 = 122,826.60/x
  3. Step 3: Cross multiply
    181,729.80x = 272,886.30 × 122,826.60
  4. Step 4: Simplify right side
    181,729.80x = 33,517,696,415.58
  5. Step 5: Solve for x
    x = 33,517,696,415.58/181,729.80
  6. Step 6: Final answer
    x = 184,436.99

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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.