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Finding the Fourth Proportional to 223,781.63, 335,672.44 and 65,997.78

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Solution

The fourth proportional to 223,781.63, 335,672.44 and 65,997.78 is: 98,996.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,781.63 : 335,672.44 = 65,997.78 : x
  2. Step 2: Convert to fraction form
    223,781.63/335,672.44 = 65,997.78/x
  3. Step 3: Cross multiply
    223,781.63x = 335,672.44 × 65,997.78
  4. Step 4: Simplify right side
    223,781.63x = 22,153,635,847.18
  5. Step 5: Solve for x
    x = 22,153,635,847.18/223,781.63
  6. Step 6: Final answer
    x = 98,996.67

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1.5x scale

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.