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Finding the Fourth Proportional to 435,687.24, 653,531.38 and 136,169.39

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Solution

The fourth proportional to 435,687.24, 653,531.38 and 136,169.39 is: 204,254.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,687.24 : 653,531.38 = 136,169.39 : x
  2. Step 2: Convert to fraction form
    435,687.24/653,531.38 = 136,169.39/x
  3. Step 3: Cross multiply
    435,687.24x = 653,531.38 × 136,169.39
  4. Step 4: Simplify right side
    435,687.24x = 88,990,970,653.86
  5. Step 5: Solve for x
    x = 88,990,970,653.86/435,687.24
  6. Step 6: Final answer
    x = 204,254.25

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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.