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Finding the Fourth Proportional to 408,851.07, 613,233.46 and 109,361.87

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Solution

The fourth proportional to 408,851.07, 613,233.46 and 109,361.87 is: 164,031.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,851.07 : 613,233.46 = 109,361.87 : x
  2. Step 2: Convert to fraction form
    408,851.07/613,233.46 = 109,361.87/x
  3. Step 3: Cross multiply
    408,851.07x = 613,233.46 × 109,361.87
  4. Step 4: Simplify right side
    408,851.07x = 67,064,357,932.17
  5. Step 5: Solve for x
    x = 67,064,357,932.17/408,851.07
  6. Step 6: Final answer
    x = 164,031.26

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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.