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Finding the Fourth Proportional to 178,965.48, 268,480.62 and 73,725.96

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Solution

The fourth proportional to 178,965.48, 268,480.62 and 73,725.96 is: 110,602.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,965.48 : 268,480.62 = 73,725.96 : x
  2. Step 2: Convert to fraction form
    178,965.48/268,480.62 = 73,725.96/x
  3. Step 3: Cross multiply
    178,965.48x = 268,480.62 × 73,725.96
  4. Step 4: Simplify right side
    178,965.48x = 19,793,991,450.90
  5. Step 5: Solve for x
    x = 19,793,991,450.90/178,965.48
  6. Step 6: Final answer
    x = 110,602.29

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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.