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Finding the Fourth Proportional to 178,991.60, 268,584.60 and 73,821.20

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Solution

The fourth proportional to 178,991.60, 268,584.60 and 73,821.20 is: 110,771.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,991.60 : 268,584.60 = 73,821.20 : x
  2. Step 2: Convert to fraction form
    178,991.60/268,584.60 = 73,821.20/x
  3. Step 3: Cross multiply
    178,991.60x = 268,584.60 × 73,821.20
  4. Step 4: Simplify right side
    178,991.60x = 19,827,237,473.52
  5. Step 5: Solve for x
    x = 19,827,237,473.52/178,991.60
  6. Step 6: Final answer
    x = 110,771.89

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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.