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Finding the Fourth Proportional to 178,383.80, 267,446.10 and 73,148.60

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Solution

The fourth proportional to 178,383.80, 267,446.10 and 73,148.60 is: 109,669.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,383.80 : 267,446.10 = 73,148.60 : x
  2. Step 2: Convert to fraction form
    178,383.80/267,446.10 = 73,148.60/x
  3. Step 3: Cross multiply
    178,383.80x = 267,446.10 × 73,148.60
  4. Step 4: Simplify right side
    178,383.80x = 19,563,307,790.46
  5. Step 5: Solve for x
    x = 19,563,307,790.46/178,383.80
  6. Step 6: Final answer
    x = 109,669.76

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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.