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Finding the Fourth Proportional to 572,197.75, 858,325.78 and 193,132.33

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Solution

The fourth proportional to 572,197.75, 858,325.78 and 193,132.33 is: 289,708.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,197.75 : 858,325.78 = 193,132.33 : x
  2. Step 2: Convert to fraction form
    572,197.75/858,325.78 = 193,132.33/x
  3. Step 3: Cross multiply
    572,197.75x = 858,325.78 × 193,132.33
  4. Step 4: Simplify right side
    572,197.75x = 165,770,457,790.47
  5. Step 5: Solve for x
    x = 165,770,457,790.47/572,197.75
  6. Step 6: Final answer
    x = 289,708.34

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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.