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Finding the Fourth Proportional to 453,361.88, 680,018.22 and 137,794.19

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Solution

The fourth proportional to 453,361.88, 680,018.22 and 137,794.19 is: 206,683.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,361.88 : 680,018.22 = 137,794.19 : x
  2. Step 2: Convert to fraction form
    453,361.88/680,018.22 = 137,794.19/x
  3. Step 3: Cross multiply
    453,361.88x = 680,018.22 × 137,794.19
  4. Step 4: Simplify right side
    453,361.88x = 93,702,556,410.05
  5. Step 5: Solve for x
    x = 93,702,556,410.05/453,361.88
  6. Step 6: Final answer
    x = 206,683.80

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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.