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Finding the Fourth Proportional to 220,857.66, 331,279.74 and 63,086.40

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Solution

The fourth proportional to 220,857.66, 331,279.74 and 63,086.40 is: 94,627.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,857.66 : 331,279.74 = 63,086.40 : x
  2. Step 2: Convert to fraction form
    220,857.66/331,279.74 = 63,086.40/x
  3. Step 3: Cross multiply
    220,857.66x = 331,279.74 × 63,086.40
  4. Step 4: Simplify right side
    220,857.66x = 20,899,246,189.54
  5. Step 5: Solve for x
    x = 20,899,246,189.54/220,857.66
  6. Step 6: Final answer
    x = 94,627.67

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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.