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Finding the Fourth Proportional to 159,232.08, 238,861.12 and 45,388.64

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Solution

The fourth proportional to 159,232.08, 238,861.12 and 45,388.64 is: 68,086.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,232.08 : 238,861.12 = 45,388.64 : x
  2. Step 2: Convert to fraction form
    159,232.08/238,861.12 = 45,388.64/x
  3. Step 3: Cross multiply
    159,232.08x = 238,861.12 × 45,388.64
  4. Step 4: Simplify right side
    159,232.08x = 10,841,581,385.68
  5. Step 5: Solve for x
    x = 10,841,581,385.68/159,232.08
  6. Step 6: Final answer
    x = 68,086.67

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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.