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Finding the Fourth Proportional to 443,255.78, 664,883.64 and 110,831.78

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Solution

The fourth proportional to 443,255.78, 664,883.64 and 110,831.78 is: 166,247.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,255.78 : 664,883.64 = 110,831.78 : x
  2. Step 2: Convert to fraction form
    443,255.78/664,883.64 = 110,831.78/x
  3. Step 3: Cross multiply
    443,255.78x = 664,883.64 × 110,831.78
  4. Step 4: Simplify right side
    443,255.78x = 73,690,237,314.08
  5. Step 5: Solve for x
    x = 73,690,237,314.08/443,255.78
  6. Step 6: Final answer
    x = 166,247.66

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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.