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Finding the Fourth Proportional to 435,486.33, 653,229.26 and 135,992.58

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Solution

The fourth proportional to 435,486.33, 653,229.26 and 135,992.58 is: 203,988.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,486.33 : 653,229.26 = 135,992.58 : x
  2. Step 2: Convert to fraction form
    435,486.33/653,229.26 = 135,992.58/x
  3. Step 3: Cross multiply
    435,486.33x = 653,229.26 × 135,992.58
  4. Step 4: Simplify right side
    435,486.33x = 88,834,331,718.93
  5. Step 5: Solve for x
    x = 88,834,331,718.93/435,486.33
  6. Step 6: Final answer
    x = 203,988.80

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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.