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Finding the Fourth Proportional to 162,956.70, 243,851.85 and 148,959.90

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Solution

The fourth proportional to 162,956.70, 243,851.85 and 148,959.90 is: 222,906.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,956.70 : 243,851.85 = 148,959.90 : x
  2. Step 2: Convert to fraction form
    162,956.70/243,851.85 = 148,959.90/x
  3. Step 3: Cross multiply
    162,956.70x = 243,851.85 × 148,959.90
  4. Step 4: Simplify right side
    162,956.70x = 36,324,147,190.82
  5. Step 5: Solve for x
    x = 36,324,147,190.82/162,956.70
  6. Step 6: Final answer
    x = 222,906.74

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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.