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Finding the Fourth Proportional to 178,873.80, 267,921.90 and 108,630.60

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Solution

The fourth proportional to 178,873.80, 267,921.90 and 108,630.60 is: 162,709.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,873.80 : 267,921.90 = 108,630.60 : x
  2. Step 2: Convert to fraction form
    178,873.80/267,921.90 = 108,630.60/x
  3. Step 3: Cross multiply
    178,873.80x = 267,921.90 × 108,630.60
  4. Step 4: Simplify right side
    178,873.80x = 29,104,516,750.14
  5. Step 5: Solve for x
    x = 29,104,516,750.14/178,873.80
  6. Step 6: Final answer
    x = 162,709.78

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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.