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Finding the Fourth Proportional to 178,873.96, 268,310.62 and 45,754.28

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Solution

The fourth proportional to 178,873.96, 268,310.62 and 45,754.28 is: 68,631.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,873.96 : 268,310.62 = 45,754.28 : x
  2. Step 2: Convert to fraction form
    178,873.96/268,310.62 = 45,754.28/x
  3. Step 3: Cross multiply
    178,873.96x = 268,310.62 × 45,754.28
  4. Step 4: Simplify right side
    178,873.96x = 12,276,359,234.45
  5. Step 5: Solve for x
    x = 12,276,359,234.45/178,873.96
  6. Step 6: Final answer
    x = 68,631.34

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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.