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Finding the Fourth Proportional to 178,961.64, 268,428.44 and 104,033.96

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Solution

The fourth proportional to 178,961.64, 268,428.44 and 104,033.96 is: 156,042.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,961.64 : 268,428.44 = 104,033.96 : x
  2. Step 2: Convert to fraction form
    178,961.64/268,428.44 = 104,033.96/x
  3. Step 3: Cross multiply
    178,961.64x = 268,428.44 × 104,033.96
  4. Step 4: Simplify right side
    178,961.64x = 27,925,671,727.51
  5. Step 5: Solve for x
    x = 27,925,671,727.51/178,961.64
  6. Step 6: Final answer
    x = 156,042.78

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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.